Zoology

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Chart indicating various life cycle changes of a worm
Acanthocephalans
aka: Spiny-Headed Worms
aka: Thorny-Headed Worms
These cylindrical metazoan worms, superficially similar to nematode...
Alligator snapping turtle in water
Alligator Snapping Turtle
The alligator snapping turtle (Macrochelys temminckii) is North America’s largest freshwater turtle. This tu...
Stuffed alligator with sign on wooden shelf
American Alligator
The American alligator (Alligator mississippiensis) belongs to the class Reptilia, order Crocodylia, superfami...
Black and orange insect on human hand and pair of insects
American Burying Beetle
aka: Giant Carrion Beetle
The American burying beetle (Nicrophorus americanus)—which belong...
Four phases of eel growth from just born to adult form
American Eel
The American eel (Anguilla rostrata) belongs to the order Anguilliformes and family Anguillidae. Common names ...
Ammonite fossil examples with corresponding letters
Ammonites
aka: Ammonoids
Ammonites are an extinct group of marine invertebrates in the Phylu...
Three-toed Amphiuma (snake like amphibian) sliding across dirt and pine needled surface
Amphibians
Arkansas has within its borders a modest assemblage of salamanders, frogs, and toads, which are taxonomically ...
Types of amphipod with corresponding letters for each
Amphipods
aka: Scuds
Amphipods belong to the Phylum Arthropoda, Class Crustacea, Subclas...
Examples of worms with corresponding letters
Annelids
aka: Segmented Worms
The phylum Annelida consists of over 22,000 living species of segme...
Apicomplexans under magnification with corresponding letters
Apicomplexans
aka: Sporozoans
The protistan Phylum Apicomplexa (formerly Sporozoa) contains a tre...
Book cover for "Introduction to Applied Entomology" by "William J. Baerg" featuring a long-nosed beetle illustration.
Arachnids
Arachnids belong to Chelicerata, one of four groups of living arthropods. The other three groups are Crustacea...
Small orange fish on black background
Arkansas Darter
aka: Etheostoma cragini
Arkansas darter (Etheostoma cragini) populations are scattered amon...
Arkansas Entomological Society
The Arkansas Entomological Society (AES) was founded in May 1991 by entomology educators, researchers, and ind...
Female mussel shell
Arkansas Fatmucket
aka: Lampsilis powellii
The Arkansas fatmucket is a bivalve mollusk belonging to the family...
Types of tick with corresponding letters
Asian Longhorned Tick
aka: Bush Tick
The Asian longhorned tick (Haemaphysalis longicornis) is an ectopar...
Types of soft-bodied organisms with corresponding letters
Aspidogastreans
aka: Aspidobothrians
aka: Aspidobothreans
An interesting group within the Class Trematodes (flukes) includ...
Line drawing of fish above two real examples of the same
Atherinopsids
aka: Neotropical Silversides
Atherinopsids, or neotropical silversides, belong to the order Athe...
Concrete path wending past grass
Audubon Arkansas
Audubon Arkansas was established in 2000 as the twenty-fifth state office of the National Audubon Society thro...
Old white man with sideburns surrounded by birds and plant life with the word "Audubon" in the center
John James Audubon (1785–1851)
John James Audubon, a frontier naturalist and artist, is famous for illustrating and writing The Birds of Amer...
Yellow breasted birds on tree branch with white flower on it
Bachman's Warbler
aka: Vermivora bachmanii
Bachman’s warbler (Vermivora bachmanii) was a small, yellow-and-b...
Large spider in a person's hand
William J. Baerg (1885–1980)
William J. Baerg was a naturalist, entomologist, and teacher who served as head of the Department of Entomolog...
bald eagle perched on bare branch
Bald Eagle Mass Death of the 1990s
During the winters of 1994–95 and 1996–97, unprecedented mass deaths occurred among bald eagles at DeGray ...
A striped fish on a black background
Banded Pygmy Sunfish
The banded pygmy sunfish (Elassoma zonatum) belongs to its own family (Elassomatidae) and the Order Perciforme...
Types of bat with corresponding letters
Bats
Bats belong to the class Mammalia and the order Chiroptera. There are two suborders: the Yinpterochiroptera (f...
Stuffed alligator with sign on wooden shelf
Big Arkie
Big Arkie was a thirteen-foot-long alligator caught in 1952 near Hope (Hempstead County). He was the Little Ro...
bald eagle perched on bare branch
Birds
The birdlife of Arkansas (its avifauna) comprises just over 400 species, although that number includes more th...
Lake with tree covered shores and hills in the distance
Birdwatching
aka: Birding
Birdwatching, also commonly called birding, is the hobby of observi...
A single bison standing at bottom of hill in grassy field trees and stump in background
Bison
aka: Buffalo
American bison are large mammals that once ranged across the majori...
Black bear sitting upright
Black Bears
aka: Ursus americanus
Black bears have a rich and varied history in Arkansas. Once giving...
Body parts of a Bowfin fish with labels above a bowfin in water
Bowfin
aka: Grinnell
Bowfin (Amia calva) belong to the primitive North American fish fam...
Worm-like creatures on crawfish claw and individual creature in water
Branchiobdellidans
aka: Crayfish Worms
Branchiobdellidans, or crayfish worms, are leech-like, clitellate a...
Diagram of bryozoan with parts labeled in black
Bryozoans
aka: Ectoprocta
aka: Moss Animals
Bryozoans (commonly called moss animals) are generally sessile, col...