Just a friendly reminder, tomorrow (or today, depending on where you are in the world) is April 1st. Remember to take whatever you see in the news or (especially) social media tomorrow with a grain of salt... and if you see something that looks a little off in the next few days, remember to check the date it was originally posted. As a reminder, here are our friends from Australian Reptile Park.
Tables of Contents
Tables of Contents
Wednesday, March 31, 2021
Tuesday, March 30, 2021
Aquarium of the Dead
I'm going to be honest, I never really thought of an aquarium as that scary of a place. Sure, a lot of the creatures in it can be frightening to many people, especially if they are in an exaggerated B horror movie: sharks, octopus, piranha, eel. But, I mean... they're in tanks. If they were to escape from the tanks, all of them - except for the octopus - would just... flop. And then die. And then your horror movie would be over.
Maybe I just don't have the imagination for this sort of thing. But it looks like someone does. Coming soon - Aquarium of the Dead! (I'm having trouble getting the trailer to post directly on the page, and will update as soon as it works. Until then, feel free to follow the YouTube link).
So first of all, love the tagline. Secondly, I will totally see this whenever it comes on Netflix or whatever streaming service. I do always have mixed feelings about movies like this. On one hand, it's fun to see a (very unrealistic) depiction of your animals on screen, as well as a highly-fictionized version of your work place. On the other, most of those animals are, by virtue of the plot, going to probably die very horrible deaths. Also, it's likely that some or all of the aquarium employees will be depicted as horrible people who deserve to die, perhaps as comeuppance for "exploiting" the animals. It's fair to say that most people in most horror movies are people who, if they don't explicitly deserve to die, then we the audience are, at the least, not supposed to mourn too much.
Sunday, March 28, 2021
Species Fact Profile: Medicinal Leech (Hirudo medicinalis)
(European) Medicinal Leech
- Grow up to 20 centimeters long. Tube-shaped body with a sucker at each end. The anterior sucker, which has "teeth" (about 100 sharp edges), is primarily used for the feeding, while the posterior one mostly aids in leverage and climbing
- Color is brown or green, darker on the dorsal side and lighter on the ventral, often with a thin red stripe on the dorsal side
- Feed by piercing the skin with the teeth of the front sucker, then sucking out blood while injecting anticoagulants (called hirudin) into the wound to keep the blood flowing. The saliva contains an anesthetic so that the bitten animal does not feel pain during the feeding
- A large leech can consumer up to 10 times its body weight in blood during a feeding, and may not need to eat again for a year
- This species has been used for thousands of years in medicine, both human and veterinary. Traditionally it was used to restore balance between the "humors", but also to remove access blood, reduce inflammation, and, in more contemporary times, assist with skin grafts and transplants.
- Leeches are still used in a reduced capacity in modern medicine, though it is now far more common to use a synthetic version of hirudin, or devices which are called "mechanical leeches"
- Have declined in recent years, first through over-collection for medicinal use, later through the decline of their favored hosts (horses, which were replaced by cars and tractors) and loss of habitat
Saturday, March 27, 2021
Sharks on the Interstate
Thursday, March 25, 2021
From the News: Snake Owner Survives Venomous Bite With Help From Riverbanks Zoo
Snake owner survives venomous bite with help from Riverbanks Zoo
Maybe more than any other venomous snakes, mambas make me nervous. They're smart and alert, have a twitchy, nervous disposition, and are fast as lightning. Combine that with a deadly neurotoxin which can kill a human many times over and you can see why they rank very high on my list of animals to not get bitten by. One private pet owner in North Carolina (where keeping venomous snakes is legal) was not having a lucky day and was bitten by his pet green mamba, the smaller, more arboreal cousin to the more famous black mamba.
Being an African species, green mamba bites aren't something that many hospitals in the US are ever going to have to deal with, so they don't stock the very expensive, perishable antivenin to treat bite victims. Green mambas aren't quite rare in zoos, but they also aren't super common. The victim is very lucky that there was a zoo within a reasonable distance (read: a one-state radius) that had antivenin. The staff of the Riverbanks Zoo is to be congratulated for their quick response, which doubtlessly saved this man's life.
Green mambas are gorgeous snakes, no doubt about it. That beauty is matched with incredible danger. Perhaps, in light of recent events, the owner might consider a corn snake or a ball python next time.
The Green Mamba snake, shown in this Dec. 29, 2009, file image, is shy, but it is quick and highly venomous. The chances of surviving a Green Mamba bite without antivenin treatment are very low. (Source: AP/Fabian Bimmer)(WRDW)Wednesday, March 24, 2021
All for Animals - March 31st
Monday, March 22, 2021
Of Idiots and Elephants
California's zoos and aquariums have waited so long to reopen so they can bring in some much needed revenue... and then stuff like this happens. It's probably got a few keepers thinking, "You know, being closed really wasn't that bad..."
This elephant's charge was halfhearted, more of a warning than anything else. This had the potential to be much, much, worse.Saturday, March 20, 2021
Stopping Stereotypes
Friday, March 19, 2021
Ready, Aim, Squirt
I've seen archerfish (usually the banded species, sometimes others) at numerous aquariums, but I've never been lucky enough to see one catching its food by shooting water. Some aquariums do offer feeding demos that let visitors see these sharpshooters in action. In situations where visitors can't see (I mean, they're small fish, you're only going to feed them so many times before they swell up and explode), technology can provide a helpful substitute, with screens nearby playing footage of the fish feeding... sort of like this, at the Georgia Aquarium:
Wednesday, March 17, 2021
Species Fact Profile: Banded Archerfish (Toxotes jaculatrix)
Banded Archerfish
- Grow up to 30 centimeters long, but usually about 20 centimeters. Spade-shaped, laterally-compressed body with a rounded dorsal fin towards rear
- Silver scales with a slight gold tint, tinged green or brown on the back, with four to six distinctive black markings (roughly triangular in shape) along its sides
- Catch prey outside of the water, such as insect perched on a nearby overhanging leaf, by drawing water into their mouths and spitting it at the target, knocking it into the water. This is done by raising the fish's tongue against the roof of the mouth, forming a tube through with highly pressurived water can be shot. A large fish can shoot an accurate stream of water 2-3 meters away. This appears to be a learned behavior, with fish getting better to practice.
- In the presence of other archerfish, the fish sometimes take longer to shoot and only do so from a much closer range, apparently to prevent other fish from stealing their catches. Conversely, young fish will sometimes gather together to shoot at insects, increasing the odds that one of them will succeed in hitting it. They will also jump out of water to grab overhead prey
- Large, forward-facing eyes (set close together due to thin body) give excellent binocular vision. Have the ability to compensate for refraction of light on the surface of the water to more accurately aim their streams at their targets
- Toxotes is from the Greek for "archer," jaculatrix is from the English "jaculate", as in "to throw or cast." Both parts of the scientific name, as well as the common name, refer to the hunting strategy used by this species
- Relatively common. Sometimes fished commercially or collected for the aquarium trade. Main long-term threat to survival is habitat loss (destruction of mangroves) and pollution
Tuesday, March 16, 2021
It's the Moist Wonderful Time of the Year
The last of the winter chill may still be in the air in some parts of the country, but spring is coming, slowly but surely. With it comes flowers, sunlight, and, my favorite part, amphibians. The warming, wet weather is perfect for frogs, toads, salamanders, and newts, which are beginning to emerge from their winter hiding places deep in the substrate.
Most amphibians in the northeastern US lay their eggs in seasonal wetlands, which tend to dry up in the late summer. A few, such as the marbled salamander, get an early start, laying during the fall when the pools are dry, with the eggs hatching as they fill in with moisture later on, giving them a head-start on other amphibians. Wood frogs are another early-bird; their bodies literally contain an antifreeze-like compound which lets them emerge from the cold earlier than other frogs. And you'll certainly know that spring is here when the spring peepers start their chorusing - they are one of the most numerous and vocal of the frogs where I live.
When you drive on these wet nights in late winter and early spring, keep your eyes on the road (I mean, more than you normally would, which I hope is a lot to begin with). You may see a knot of toads or a horde of salamanders squiggling across the road on their way to breeding sites. Drive carefully to make sure that everyone makes it where they need to go. Maybe you'll even help someone across the street. (And if you decide to go out looking for amphibians yourself along the roads, please remember to be safe, watch for cars, and wear reflective clothing. Only get out to go herping if it safe to do so - use common sense and follow laws!)
Winter Blizzards Bring Spring Lizards:
How to find amphibians during their spring breeding migrations
Saturday, March 13, 2021
Documentary Review: Bird of Prey
"If we lose the Philippine eagle in the Philippines, the whole world loses. It might be found here, but it is a property of the world."
If some ornithological genie were to offer me the chance to go anywhere in the world to see any one, single species of bird... well, first of all, I'd be a little irritated and baffled, because man, is that one specific genie. After that, though, I'd make my decision pretty quickly. I'd go to the Philippines - because it is there (and, with the recent exception of Jurong Bird Park in Singapore, only there) that you can see the bird that I consider the most magnificent of all raptors - the Philippine eagle.
I've never seen a live Philippine eagle. I've never seen a taxidermy mount of one. In fact, so rare is this bird that, it wasn't until a saw the documentary Bird of Prey: The Story of the Rarest Eagle on Earth that I ever saw footage of this species in the wild. Also known as the Philippine monkey-eating eagle is one of the largest eagles in the world, rivaling the harpy eagle of South America and Steller's sea eagle of northeast Asia. It is the apex predator of the Philippine rainforests, hunting monkeys, snakes, birds, civets, and flying lemurs. It's shy, reclusive nature, natural rarity, and remote habitat have long made it a scientific mystery - it was not known to western science until 1896, and not filmed in the wild until 1977.
That 1977 footage was obtained by Neil Rettig, who is one of the cinematographers for Bird of Prey. He offers the viewer great insight into the natural history of these birds, including footage of a young eaglet feeding in his nest. Having filmed these extremely rare birds for decades, Rettig offers an intimate view of the lives of the eagles. When he shows us a mated pair soaring together over the canopy in a synchronized flight and muses that they are celebrating the completion of a monumental task - the successful rearing of their young, I'm not inclined to brush him of as anthropomorphizing. I believe him.
The story of the eagle isn't always a happy one - they are, after all, one of the rarest birds in the world. The documentary talks about their decline, then takes us in the Filipino captive breeding program and rehabilitation program, which desperately tries to salvage what birds are left. One of the more intimidating scenes was watching an imprinted, hand-reared bird try to copulate with its handler - friendly intentions or not, I would not like to see that beak and those talons come homing in on my face. The caretakers share their triumphs in helping to coax the eagles back from the edge of extinction. Still, they acknowledge their fears that a world may soon come where the only Philippine eagles are in zoos - and that would be a sadder, grayer world... though not as sad as one with no Philippine eagles at all
Early on in the program, a biologist ponders about how the Philippines lack so many of the charismatic big animals seen elsewhere in the region - no tigers, no rhinos, no orangutans. They do, he later decides, have the Philippine eagle - and when it comes to making a wilderness feel magical, that certainly makes up for a lot
Bird of Prey: The Story of the Rarest Eagle on Earth, at Amazon.com
Friday, March 12, 2021
Slippery When Wet
Wednesday, March 10, 2021
The Association of Minority Zoo Professionals
It's been noted in the past, on this blog and elsewhere, that zookeeping tends to be a very white profession. That whiteness tends to become more evident the higher you go up the organizational ladder at many zoos and aquariums, and while we can point out a few black or brown leaders in our field, they are few. The lack of diversity in the field is something that's been discussed for years, but moved closer to the forefront of conversations following the Black Lives Matter protests over the last summer.
People continued to talk about representation, largely agreeing that it was something to be desired, but not really moving on from there. I was curious to see what the next step would be.
Recently, a new organization has appeared to address the issue - the Association of Minority Zoo Professionals. It serves as a network of zoo and aquarium staffers with an interest in increasing minority participation on the field. It seeks to do this through mentoring, professional development, and fostering of community.
So far, the organization has gotten many zoos and aquariums to sign up as support organizations, with dozens of professionals from various institutions - Black, Asian, Latino, Indigenous - offering to serve as mentors. It is also offering educational resources for aspiring keepers and students to help steer them into the field (one of the questions I've always had about our poor representation in the zoo field is whether it was due to zoos not hiring minority candidates that do apply for jobs, or whether there aren't that many minority candidates because we aren't attracting them in the first place). They also offer educational resources for schools.
Building more diverse staffs in our institutions can help us build stronger relationships with the communities that we serve, and help expand our conservation messages. If zoos and aquariums are to survive and thrive, and to carry on their important work, then they need to be for everybody.
The Association of Minority Zoo Professionals
Tuesday, March 9, 2021
Species Fact Profile: Solomon Island Leaf Frog (Cornufer guentheri)
Solomon Island Leaf Frog
- Body length 7.5-10 centimeters, with females larger than males. Typical frog build, but with very pointed snout and pointed ridge over each eye (sometimes called "eyelash frogs")
- Highly variable in color, even among siblings. Base color can be tan, yellow, orange, or green. Some individuals have spots or stripes, but usually not in great number. Males may have two parallel white lines running down their sides (possibly their ureters). Patterning on the back resembles a decaying leaf
- Communicate with a loud, dog-like bark, both for attracting mates and marking territory
- Ambush predators, feeding on any small animal that comes within range, including smaller Solomon Island leaf frogs
- Still common in the wild, with some moderate pressure from collecting for the pet trade. Tolerant of habitat disturbance, will live in agricultural areas
Sunday, March 7, 2021
Not One More Vet
Saturday, March 6, 2021
Otterly Adorable
Even with zoos re-closed by COVID (though thankfully re-reopening soon) life goes on. Enjoy this absolutely adorable North American river otter pup at Chicago's Brookfield Zoo!
Friday, March 5, 2021
From the News: Apes at San Diego Zoo become first non-human primates to receive COVID-19 vaccine
Apes at San Diego Zoo become first non-human primates to receive COVID-19 vaccine
Nine great apes at the San Diego Zoo - four orangutans, five bonobos - have become the first zoo animals in the world to be vaccinated against COVID-19. The apes received a two dose treatment of a new veterinary COVID vaccine, different from the one the one which is being used to treat humans (this is worth pointing out as there were plenty of people outraged that a tiger at the Bronx Zoo got a COVID test last year when tests were scarce, even though it was a different test than the one humans receive).
This development follows the infection and recovery of gorillas at the Zoo's sister facility, the San Diego Zoo Safari Park, earlier this year. As vaccination becomes more prevalent, it will be interesting to see what other species end up being vaccinated. Big cats, which have already had a number of cases at zoos across the world? Bats, where the disease is believed to have originated? Probably not any strong need to look at birds or reptiles at this point.
For right now, we still have plenty of people to worry about getting shots into - including the keepers.
Wednesday, March 3, 2021
Revisiting a Childhood Classic
"It's a pretty good zoo," said young Gerald McGrew, and the fellow who runs it seems proud of it too,
But if I ran the zoo," said young Gerald McGrew, "I'd make a few changes, that's just what I'd do."
I don't know how universal this is, but when I graduated high school, it seemed like every kid in my graduating class got the same gift from their parents, grandparents, aunts, uncles, or someone - a copy of Dr. Seuss's children's book, "Oh the Places You'll Go." I didn't. Instead, I got a copy of another Seussian book, "If I Ran the Zoo." By this time in my life I was already volunteering at our local zoo and had been for some years, occasionally getting a paid side-gig as a thanks for a job well done. Everyone who knew me knew that my goal was to work in a zoo, so the gift seemed pretty fitting.
I'm not positive what I would have gotten if I graduated next year. It wouldn't be this book, unless someone had an old copy set aside. If I Ran the Zoo is going out of print, as are a small handful of other Seuss books. Seuss was an excellent poet and illustrator. It's just that some of those illustrations are a little.... well...