Category Archives: taxonomy/nomenclature

Riveting Piece About NGS Photographer & Vanishing Species


Both the New York Times & CNN seem to be reading the Zoo Peeps blog. I’m so flattered. I won’t distract you with my thoughts, but read my article on the re-branding of African wild dogs and other endangered species. The new field of conservation marketing and brand development is taking off.


“Rarest of the Rare”


Please read my post on the State of the Wild (WCS 2010). The white-headed langur like the Indo-Chinese tiger and other tiger subspecies has been driven to near extinction in-part because of wildlife trafficking. Traditional Chinese Medicine continues to promote the practice of zootherapy.  Zootherapeutic agents include parts and derivatives of whole carcasses, tissues and byproducts of wildlife. There are approximately 100 white-headed langurs left in the wild. One subspecies occurs in Cat Ba Island, Vietnam and the other in Guangxi, China.  This partially albinistic langur was considered a subspecies of Francois’ langurs as recently as 1995.  One day I may share my experience with captive Francois’ langurs. If I had to pick a favorite Old World monkey, I might just pick Francois’ langurs.

Dr. Jordan Schaul, Zoo Keeper Emeritus


“Vice President of Fish”

This title grabbed the attention of an all-time low number of  subscribers 30 minutes post-publication (lunch).  I’m re-posting with a new title and a challenge for you to name that fish in the pic below.

As you can see I’m alternating between field conservation topics and discussions more directly relevant to collections husbandry science at living institutions.

This is a short one, but I wanted to offer some fish flakes for thought. A friend of mine who works in an aquatics/aquarium department of a large zoo asked my opinion about appropriate titles for fish and aquatic invertebrate husbandry specialists. My first thought was that the person who signs his pay check is the only person whose opinion matters. My second thought was that it depends on where you work.  At a public aquarium the title of aquarist is popular, but so is biologist.  This friend preferred the term “biologist” because the title is used in some commercial aquaculture circles, and he also felt that such a distinction more aptly described his job responsibilities. He is responsible for life support systems and the maintenance of aquatic ecosystems from reef tanks to brackish water exhibits to pelagic ocean fish tanks.

Aquariology is the study of both the fauna and flora of aqauria. Hence, aquariologist may be the most appropriate title for professional fish husbandry personnel working in public aquaria whereas “fish keeper” may be reserved for the tropical fish hobbyists or private fish breeders.

Fisheries biologists study commercial and wild fisheries, but also must have a working knowledge of fish keeping as well as the design and maintenance of life support systems for commercial fish breeding.

This topic really begs the question of whether or not all husbandry positions deserve specialist titles.   I personally think that “wild animal keeper” is fitting because it has persisted for so long and emphatically coveys the role of working with wildlife.  The Bronx Zoo- based Wildlife Conservation Society and many EAZA members refer to their zoo animal husbandry specialists as such.  Animal Care Specialist or Husbandry Technician are also quite fitting.

I understand that some institutions may refrain from designating husbandry and training staff as “biologists” because those titles have historically been reserved for those personnel conducting research as primary part of their occupation description. I understand this.  The questioned that followed was whether or not an animal husbandry specialist or animal keeper in theory, is deserving of the title “biologist.”   A biologist studies some aspect of life, but does not necessarily conduct research. In academia some faculty are hired exclusively as research scientists (biologists) and do nothing, but conduct research. Hence, it is fair to distinguish a research scientist/biologist from other scientists/biologists who endeavor to do more than conduct research studies.  They may teach, they may curate collections, and they might write science articles for more popular publications among other things.  It is also fair to consider an animal keeper who caters to the environmental and physiological requirements of an animal as a biologist. Through formal education or experience one must have learned enough about organismal biology to sustain life. Fish keepers not only sustain life through managing aquatic life support systems, but they also sustain the aquatic ecosystem that mimics natural environments derived from surface water. Other ectotherm biologists (e.g. herpetologists/herp keepers) also cater to both the organism and the artificial environment. Both these specialist vocational categories require a comprehensive understanding of physiological ecology and ecosystem health on a micro-scale.

Dr. Jordan Schaul, Zoo Keeper Emeritus

DNRM (Name This Fish)

“We’ll Skip the Small Mammal Building”

Rarely do you hear the zoo visitor soliciting directions to the small mammal exhibits from docents, guest services, or other zoo personnel.  Most people are eager to get right to the big guys.  Guests hastily try to orient themselves with respect to some key locales with the help of the printed zoo maps.  They are challenging for some people to use at first, but they are actually quite useful if you have some patience. Yes, some people are most eager to visit the restroom, the gift shop, or perhaps the restaurant.  Others quickly embark on a journey to see the high-profile species. Among these people some are too excited to fumble with the schematic map and  start following patrons who appear to know where they are going. Although many seek out the quickest route to the mega-fauna on display (e.g., big cats, apes, marine mammals, and elephants, etc.), a few are probably more systematic in their approach to comprehensive zoo animal viewing.

But once the visitors, regardless of their interests or enthusiasm, catch site of the crowds hovering over something seemingly insignificant, their curiosity over rides the impulse to pass up anything of potential interest and temptation leads them to follow others.

BBC News

The most popular exhibits that may serve as the impetus for visiting the zoo in the first place may eventually take a back seat to the lesser known and underappreciated displays of charismatic min-fauna.  By the time you leave the zoo, your party may have all but forgotten the lions and tigers and bears. While reflecting on your zoo visit the interest in mega-fauna is  somehow superseded by discussion of meerkats, and prairie dogs, and naked mole rats.  These semi-fossorial and fossorial species are highly social, perceived as “cute” and their high energy levels make them particularly interesting to watch. Even those distracted by ADHD or cotton candy find these animals to be fascinating. Their impromptu “pop up” performances are riveting.

True fossorial mammals live their entire lives virtually underground, but due to some fantastic exhibit design zoos now offer subterranean viewing of these eusocial, true fossorial mammals.  The African mole rats or blesmols, including the naked mole rat (which is commonly displayed in zoos) use their incisors to dig through soil.  The smallest of  the fossorial rodents may burrow at a rate of 4m/h. This energy expenditure comes at a cost, but indicates just how much energy these animals can expend in a short period of time. To restore energy small mammals are typically voracious eaters and consume a lot of food .

Energy expenditure is determined by body size, climate, and foraging habits.  The physiological parameters considered in the measurement of the metabolic activity and the general energetics of small endotherms (animals that regulate their own body temperature) must be considered when comparing wild animals to zoo animals. Even captive small mammals will be quite active and captivating to watch. The abundance and distribution of food resources in captivity are far different from what is available to wild animals.  This may permit visitors with more of an opportunity to observe a certain spectrum of behaviors.  This is purely speculation.

Without concern for predators or other coteries (harems) of prairie dogs, the behavioral repertoire of captive prairie dogs may differ or be limited compared to wild prairie dogs. None-the-less, their social interactions are most interesting.  I should mention that prairie dogs are very important to prairie ecosystems, and they are actually ground squirrels. They do bark like dogs.

Today prairie dog exhibits allow kids and adults to view these animals under ground and are also designed to simulate fossorial activities.  I first worked with a black-tailed prairie dog enclosure with a bottomless enclosure.  In an effort to deter the animals from burrowing out of the exhibit, I placed long white, plastic tubes above ground to encourage the animals to spend more time at the surface. This alone won’t discourage burrowing activity, but it provides secure above ground retreats.

Black-tailed prairie dogs which one numbered in the billions were candidates for the endangered species list. They are highly susceptible to plague and human activity has heavily fragmented their habitat.  Today they are commonly displayed in zoos. A mentor of mine, Dr. Penny Bernstein began studying black-tailed prairie dog communicative behavior at the Philadelphia Zoo in the 1970’s.  The Philadelphia Zoo continued to study the behavior of these animals as have other living institutions.  More recently, the Denver Zoo has dedicated an entire day to prairie dog awareness.  A good reference for prairie dog information is the following website

Dr.  Jordan Schaul, Zoo Keeper Emeritus

Vanishing Felid of the Wakhan Corridor

Time Article

Time Article

(No commentary or supplemental info provided at this time)