Animals

Blue shark

Blue tit

Blue Tit (Cyanistes caeruleus)

A small, colourful passerine of the tit family found across temperate Europe and western Asia. Noted for its blue cap, yellow underparts and acrobatic foraging; common in woodlands

Blue whale

Blue whale (Balaenoptera musculus)

Blue-ringed octopus

Blue-tongued skink

Bluebird

Bluebird (Sialia): appearance, behavior, habitat, and conservation

Bluefish

Boa constrictor

Bobcat

Bobcat (Lynx rufus): North American wild cat

Boidae

Boidae: the boa family of nonvenomous constricting snakes

Boiga

Boiga (cat‑eyed snakes)

Bombardier beetle

Bombinatoridae

Bombylius major

Bongo (antelope)

Bonobo

Boo (dog)

Booby

Boomslang

Border Collie

Border Collie: herding dog breed, traits, history and care

Borealopelta

Borzoi

Boston Terrier

Boston Terrier: American companion dog breed

Botfly

Bothriospondylus

Bottlenose dolphin

Boulengerula taitana

Boulengerula taitana — Taita African caecilian

Bouvier des Flandres

Bovid

Bovinae

Bovinae: the subfamily of cattle, buffaloes, bison and their relatives

Bowerbird

Bowerbirds (Ptilonorhynchidae): elaborate courtship, ecology, and behaviour

Bowhead whale

Bowhead whale (Balaena mysticetus)

Box jellyfish

Box jellyfish (Cubozoa): biology, venom, and human interactions

Boxer (dog)

Boxer (dog) — breed overview, history, care, and characteristics

Brachiopod

Brachiopod classification

Brachiopod classification: schemes, groups, and debates

Brachiosaur

Brachiosaurus

Brachylophosaurus

Brachylophosaurus: the short-crested duck-billed dinosaur

Branchiopoda

Briard

Briard (Berger de Brie) — French long-coated herding dog

Bridle

Bridle: Equipment for Steering and Controlling a Horse

Brindle

Brindle (coat pattern)

Brine shrimp

Brine shrimp (Artemia): biology, habitat, life cycle and human uses

Brittle star

Brittle star (Ophiuroidea): biology, diversity and ecology

Brontosaurus

Brontotheriidae

Brontotheriidae (brontotheres): extinct Eocene perissodactyls

Bronx Zoo

Bronx Zoo: overview, exhibits, history and conservation