A Mexican Free Tailed Bat holding on to the bark of a tree

Singing’s Not Just for the Birds Anymore

The common perception of bat calls consists of squeaks and chirps. But many bats, including Mexican free-tailed bats of Austin, TX, sing to one another.
Close-up of a dolphin's face rising out of the water

How Smart are Dolphins, Really?

Dolphins may not be as smart as previously believed.
Four turtles in a plastic big with a net over them

Man with Turtles in his Pants is the Tip of the Iceberg

Xu Gai was caught trying to enter Canada with 51 turtles crammed into his pants.
A stamp depicted the first earthling in space, Laika, a dog.

Laika: The First Earthling in Space

The first Earthling was Laika, a Russian mongrel found on the streets of Moscow.
A brine shrimp looking towards the camera

Sea Monkeys Make the Ocean Go ‘Round

Turns out ocean currents might be created by…sea monkeys? Seriously.
A leopard crouched where a vehicle left tracks

Indian Leopards Living High on the Dog

Unbeknownst to unsuspecting residents, a large number of leopards are prowling the fields and backyards of populated agricultural lands in India. 
Stuffed Passenger Pigeon atop a wooden perch

Passengers Long Gone

Martha, last of the passenger pigeons. 
A close-up of a cell fossil

The Mystery of Megasphaera

When did animals first come into being? It might have been millions of years earlier than we thought.
Fossilized bone of Psittacosaurus liujiatunensis

Recession Lessons from an Ancient Fossil Bed

In a 120-million-year-old rock in Northeast China, paleontologists made a remarkable find.
An overhead perspective of a Common Green Darner on a green leaf

Long-Distance Migration: Everybody’s Doing It

The birds do it. The butterflies do it. And now we know that the dragonflies do to it, too: long-distance migration.