Dogs
This big, shaggy dog breed shared the screen with Owen Wilson and Jennifer Aniston in Marley & Me.
What is a Labrador Retriever?
House cats share about 96% of their DNA with this largest living cat species.
What is a tiger?
This species of acrobatic dolphin gets its descriptive English name from its habit of spinning multiple times in the air.
What is the spinner dolphin?
This main factor involves humans cutting down forests or clearing land, destroying where animals live.
What is habitat loss?
Introduced to Australia to eat cane beetles, this large toxic amphibian multiplied rapidly and poisons local predators.
What is a cane toad?
The first live animal mascot in college sports was Handsome Dan, a dog of this breed at Yale in 1889.
What is a bulldog?
Developed in the 1960s, this floppy, gentle cat breed is named for its tendency to go limp when held.
What is a Ragdoll?
To dump excess body heat after high activity, a dolphin's belly can temporarily turn this color, a process similar to blushing.
What is pink?
This famous flightless bird from the island of Mauritius hasn't been seen since the 1600s.
What is a dodo?
Covered in venomous spines, this striking reef fish from the Indo-Pacific was released from aquariums and decimates Atlantic juvenile fish.
What is a lionfish?
Three-quarters of U.S. combat dogs in World War II were this intelligent, sharp-eared German breed.
What is a Doberman Pinscher?
This soft behavior where a cat rubs or pushes rhythmically with its front paws is a leftover nursing action.
What is kneading (or making biscuits)?
Bottlenose calves are known to pick one of these unique personal identifiers for themselves shortly after birth.
What is their own name (or signature whistle)?
Found high in cold Asian mountain ranges, this elusive cat is often called the "ghost of the mountains".
What is a snow leopard?
This large, intelligent South American lizard has established breeding populations in Florida and Georgia, threatening native birds and gopher tortoises by raiding their underground nests for eggs.
What is the Argentine black and white tegu?
This comic strip beagle debuted in 1950, sleeps on top of his doghouse, and frequently battles the Red Baron in his imagination.
Who is Snoopy?
This rare Russian subspecies of tiger is adapted to freezing northern forests.
Siberian tiger (or Amur tiger)?
To avoid drowning while resting, dolphins perform this unique sleeping method, shutting down only half of this organ at a time.
What is sleeping with one brain hemisphere active (or staying half-awake)?
Rhinoceroses are critically endangered primarily because humans hunt them to get these facial growths.
What are horns?
Introduced to Australia in the 1800s for recreational hunting, this stealthy mammal is directly linked to the decline and extinction of many native small marsupials.
What is the red fox?
Dating back to the 1960s, this companion dog is widely recognized as the very first of the modern "designer" hybrid breeds.
What is a Cockapoo?
This spotted big cat of the Americas is built heavier than a leopard and has a name derived from an indigenous word meaning "he who kills with one leap."
What is a jaguar?
This specialized fatty organ located in the dolphin's forehead focuses and modulates outgoing echolocation clicks.
What is the melon?
Of the nine historical subspecies of this great cat, three—the Bali, Caspian, and Javan—became entirely extinct during the 20th century.
What is a tiger?
Growing up to 40 feet long, this gentle, filter-feeding giant—the world's largest living fish—faces a severe food shortage when voracious, invasive lionfish decimate the native reef fish larvae and plankton populations they both rely on.
What is a whale shark?