________________ touch teeth to identify one another

There is an estimated ___________ number of species in the world.

Ghost crabs growl using _____________ in their stomachs.

The _____________ has the world's fastest punch.

_________ lions do 90 percent of the hunting.

Narwhal tusks are really _____________________

Puffins use __________to scratch their bodies.

Bottlenose dolphins are even more ___________ than humans.

There's a kind of ant that only lives in _________________.

Cows painted with zebra-like stripes can _________________.

Capuchin monkeys wash their hands and feet ____________.

Sperm whales in the Caribbean have an accent.

_________________ are the only venomous primates.

Pigeons can ____________

Frogs can freeze without dying.

Male horses have more ______________ their female counterparts.

A group of ferrets is called ______________.

Octopuses can taste with their arms.

Reindeer ______________ in the winter.

Giraffes have _________ tongues.

Alligators will let manatees ___________________.

Sloths can take up to a month to completely digest a single leaf.

Adult cats only meow

Painted turtles survive winter by breathing through their butts.

A group of owls is called _____________.

A group of rhinos is called ___________.

The Canary Islands are named after dogs, not birds.

All giant pandas in zoos around the world are on loan from China.

All the ants on Earth weigh about as much as all the humans.