Tables of Contents
Tables of Contents
Thursday, March 31, 2022
From the News: Ukrainian Animal Evacuations Continue
Tuesday, March 29, 2022
Pushing Back Extinction
When I meet an animal for the first time, seeing a species that I've never seen before, it can be a pretty exciting experience for me. For some species, especially ones that I'd always heard or read about but never expected to see in person, it can get a little emotional for me. There's only one situation I can remember when the overriding emotion after the fact was depression.
That was Cincinnati Zoo, 2014, when I finagled my way for a one-on-one meeting behind the scenes with the last Sumatran rhino outside of its native range. Prior to the meeting, I knew that Sumatrans were rare - I just didn't appreciate how rare they were. Cincinnati had been met with a small amount of success breeding the species (the rhino that I was visiting was Ohio born and bred), and there had recently been talk about importing a few more to try breeding more in the states. During that visit in the back of the rhino barn, I learned that the reverse was actually true. The prospects for the species in the wild were so dire that this animal was going to shipped back to Indonesia. No one really expected the Sumatran rhino to be around much longer. The keeper who was showing me around admitted that she expected the species to be extinct in her life time - and she was older than me.
Scratching that surprisingly woolly backside though the barns, contemplating the big, brown eyes of the rhino, I tried to process the fact that I might be one of the last people to see a Sumatran rhino - certainly one of the last to see one outside of Indonesia.
Monday, March 28, 2022
Questions Worth Asking, Answers Worth Knowing
Saturday, March 26, 2022
Species Fact Profile: Flamboyant Cuttlefish (Metasepia pfefferi)
Flamboyant Cuttlefish
Metasepia pfefferi (Hoyle, 1885)
- Up to 60 centimeters in total length. Females are on average larger than males. Broad, oval mantle is flattened dorsoventrally. The dorsal mantle has three large, flap-like papillae which cover the eyes. Cuttlebone runs two-thirds the length of the mantle. The head is narrower than the mantle. The mouth is surrounded by ten appendages – two tentacles, eight arms, which are broad and blade-like.
- Sexes look alike. Have the ability to change their color, but base coloration is usually a dark brown, with overlying patterning of white and yellow, purple, pink, and orange on the arms.
- Subordinate males may change their color to mimic females to avoid more aggressive males while still hanging around females. Young are capable of changing color within hours of hatching
- Relatively slow swimmer (largely due to cuttlebone), typically “walks” along seafloor instead. Can only float for short periods of time
- Hunts by sight, using large, well-developed eyes (though likely color-blind) to look for food, chromatophores to blend into surrounding while approaching prey. Forages by day, unusual among cephalopods, which are predominately nocturnal.
- Primary defense against predators is camouflage, but is also venomous (bright coloration can serve as a warning). Also capable of secreting ink to disorient a predator while it flees
- Potentially venomous (bright coloration may be a warning), but if it is, venom is of undetermined potency. May be powerful enough to kill a human (conversely, there are some caretakers who suggest that the species might not be toxic, though it is generally treated as such during handling). If it is toxic, it would be one of the few venomous cephalopods and the only known venomous cuttlefish
- Species is currently not well known, but its small size and attractive coloration make it a potential target for over-collection for private home aquariums. It may possibly be threatened in the future by ocean acidification, which can cause the body to form denser cuttlebones, further reducing their buoyancy
- The first (and currently only) aquatic invertebrate managed as a Species Survival Plan by the Association of Zoos and Aquariums
Friday, March 25, 2022
Baby's First Check-Up
Wednesday, March 23, 2022
No Room at the Inn
Tuesday, March 22, 2022
The Hippo vs the Security Guard
Even after decades in the field, visitor reactions to animals continue to baffle me. I've seen visitors run - I don't mean "back away quickly," I mean run, as if all of hell was at their heels - from the most harmless of animals in a contact yard, or ask me, between frightened gasps, whether the tiny turtle I was holding could hurt them. And then, on the flipside, I've seen people get themselves into the most dangerous of situations (usually by crossing a barrier) with a complete lack of concern.
Take these folks at this zoo, who are about to find themselves getting a much closer look at a hippo than most people should really experience. Not a care in the world. If that guard hadn't come onto the scene (and perhaps taken a bit direct of an approach to getting the behemoth back in its - seemingly inadequately barriered - habitat), who knows how this would have played out.
Sunday, March 20, 2022
Zoo Review: SEA LIFE at Mall of America
Saturday, March 19, 2022
Bird Flu Blues
Spring is coming, and with it visitors are flocking to zoos across the country to enjoy the warm weather. Many visitors won't have been to their zoo for months, having stayed home during the winter (or perhaps for the duration of the pandemic), and are excited to see what changes have been made since they last came. One change that they might notice may strike them as a little odd. At zoos across the eastern United States, including many of the facilities east of the Mississippi, birds are disappearing from exhibits.
Highly Pathogenic Avian Influenza continues to spread across the country, impacting more zoos and aquariums each week. So far, I haven't heard of any US zoos that have suffered losses to the disease. If that is the case, than it's a testimony to how seriously zoos are taking the threat. As soon as cases are reported in neighboring counties, many facilities are pulling at-risk birds (essentially those that have the ability to be infected by wild birds, especially wild waterfowl) and removing them to safe locations. Staff who have exposure to birds outside of the zoo - such as those who might have pet birds, or work part-time at pet stores, or something similar - are being segregated from zoo birds to reduce the risk of infection. Feeding aviaries and walk-through aviaries are being shut down for the duration of this outbreak.
As the weather warms, the spring waterfowl migration will be ending. Hopefully after that, the disease will start of abate and things can return to normal. Unless of course, this is becoming the new normal. I feel like we've had several similar concerns about HPAI in recent years, whereas we seldom worried about it when I was new to the field. Are we just more diligent now? Or is this disease a new fixture of our lives, a constant background threat to our birds that we're just going to have to learn to live with?
Thursday, March 17, 2022
The Spiders Are Coming! The Spiders Are Coming!
Wednesday, March 16, 2022
Species Fact Profile: Northern Snakehead (Channa argus)
Northern Snakehead
Channa argus (Cantor, 1842)
- Usually grows up to 100 centimeters, but specimens 150 centimeters long and weighing over 8 kilograms have been captured. Long body with long, thin, rayed dorsal fin, small compressed head with a large mouth with large teeth
- Coloration is golden tan with dark blotches, more distinct towards the front of the body, running together towards the rear.
- Capable of obtaining oxygen directly from the air (thanks to a specialized chamber next to the gills), which allows this fish to live outside of water for days at a time and move short distances overland to transport itself from one body of water to another (this ability is only demonstrated in juveniles)
- Capable of entering a state of torpor, allowing them to survive under ice during cold winters, burying themselves into mud at the bottom of ponds
- Two subspecies recognized - the nominate in China and the Koreas and the Amur snakehead (C. a. warpachowskii) in eastern Russia
- Used as a food fish in eastern Asia, which (along with fishes kept as pets) is responsible for the spread of this species around the world. It has become invasive in parts of Europe and the United States
- Possession of snakeheads is strictly regulated by the federal government to prevent additional populations from becoming established, efforts are underway to exterminated identified populations outside of their native range
- In Chinese folklore, the snakehead is a symbol of parental virtue, based on the protection that adults provide their eggs and young
Tuesday, March 15, 2022
Sunday, March 13, 2022
Death by Camel
Camel kills two men after escape from Tennessee petting zoo
Police responded to a report of an escaped dromedary camel from Shirley Farm petting zoo in Tennessee. Upon arrival, two men were found unconscious at the scene, with the camel still on the loose and behaving aggressively. Police were forced to destroy the animal so that medical personnel could get to the fallen men; unfortunately, both succumbed to their injuries and died.
Dromedary (one-humped) camels are domesticated; there are no true wild ones left in the world, though some feral, introduced ones in Australia. They are so common in petting zoos, farms, and riding experiences that it's easy for us to forget how big and potentially dangerous they can be. I've had to run (if not for my life and at least for avoiding a severe maiming) from an angry bull dromedary before. While millions of people around the world live and work in close proximity to camels, security needs to minded carefully to prevent accidents like this from occurring. It's been noted that the facility in question has had compliance issues with animal care in the past, though I'm as of yet unsure whether those contributed to the escape and attacks.
Condolences to the families of the victims of this tragedy.
Saturday, March 12, 2022
Brooke Shields's Forgotten Role
This past week, the San Diego Zoo unveiled its new children's zoo, Wildlife Explorers Basecamp. Replacing the old children's zoo, it allows kids to play in a manner that emulates nearby coatis, squirrel monkeys, and other species, building empathy and encouraging hands-on learning. This past Thursday, the Zoo held a VIP opening for the exhibit. Among those in attendance was a San Diego Zoo staff alum... though perhaps not someone that many members of the public would have expected to see in that role.
Years after she was already a star, Brooke Shields had at least one more usual high school experience - an internship. Hers happened to be at the San Diego Zoo, where she worked with various species. No, it doesn't look like she ever considered dropping her active career for the lucrative world of zookeeping, nor do I think anyone expected her to. Nor did JFK Jr apparently have zookeeping in mind as a backup career when he took on a similar internship at the Bronx Zoo (detailed in You Belong In A Zoo!). A lot of zookeeping interns don't enter the field. Nor, to be honest, are any but a tiny percentage of the kids who will be playing their way through Wildlife Explorers Basecamp. And that's ok. That's not necessarily the point.
The point is to get folks involved in wildlife conservation at whatever level we can meet them at and help foster connections with animals. Maybe Brooke Shields won't be mucking stalls in a zoo or doing field work in the wild - but she does have a major pulpit as a Hollywood star from which she can reach audiences, as well as the financial power to make contributions to causes that are important to her. Zoos, aquariums, and other wildlife organizations can use all of the friends they can get, in any capacity, from big-time celebrities to the kids who want to play at being coatis, and everyone in between.
Thursday, March 10, 2022
And How Do You Know?
"And How Do You Know?"
How can something be so obvious to different people drawing the opposite conclusions?
To help answer the question, over forty organizations - zoos, aquariums, universities - are working together on a new scientific study to quantify the welfare of cetaceans (whales and dolphins) under human care. Granted, the study is being carried out by facilities which already have these animals, which means that they're likely coming at this from a place of already suspecting that they can provide the best welfare (or, at least, from not being philosophically convinced that there is no way that whales and dolphins can be well cared for in a zoo setting). By trying to back up answers scientifically, however, there is a better chance of viewing aspects of whale/dolphin welfare on a continuum, which means that it's possible to better identify what aspects of their care make the biggest difference for their wellbeing. Enclosure size? Social group? Relations with keepers?
Hopefully, this ongoing study will help us better understand the quality of life that we are giving cetaceans in aquariums. It may lead some facilities to decide that they can no longer meet those needs and phase cetaceans out of their collections. It may lead others to make substantial changes to how they are caring for their animals. What matters the most is that any changes that result will be driven by science and a desire to provide the best possible care for the animals
Wednesday, March 9, 2022
The Most Controversial Exhibit Animal in the World
Monday, March 7, 2022
Species Fact Profile: Yellow-Banded Poison Dart Frog (Dendrobates leucomelas)
Yellow-Banded (Bumblebee) Poison Dart Frog
- One of the largest dart frogs, measuring up to 5 centimeters long (usually 3-4) and weighing 3 grams. Females are larger than males
- Distinctive black and yellow banding, with each frog having a unique individual pattern; the black bands break into spots as the frog ages. The underside is solid black. The coloration serves as a warning of the poisons in their skins
- Primarily live on the ground, but climb trees, especially to find sites to lay eggs
- Communicate with a series of chirps, buzzes, trills, and hums
- During the dry season, these frogs estivate (go dormant), the only dart frog species known to show this behavior
- One of the most commonly kept poison dart frogs in the pet trade; breeds readily, so probably not posing much of a threat to wild populations through demand for pets
- Toxins in the skin are obtained from eating certain arthropods. Toxins not as prevalent in frogs raised in captivity and fed diet of domestic insects
Sunday, March 6, 2022
Can I Ask a Dumb Question?
This cartoon from MAD magazine really speaks to me... I had a coworker once who was the master of the snappy, snarky comeback. "Where are the otters today?" "Oh, it's Saturday - they don't work weekends." "Are those little ones in there the babies?" "No, those are the adults. In this species, the animals get smaller and smaller as they grow up. One day, they just get so small we can't see them anymore." Yeah, we got a lot of interesting letters about that guy. I'm pretty sure HR had a dedicated file cabinet for him.