Articles on Animals

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We know that lots of animals, maybe all animals, sleep. Cats, dogs, even worms and jellyfish sleep. But we still don’t know exactly why they started sleeping. Marcella Cheng/The Conversation

Curious Kids: Do animals sleep like people? Do snails sleep in their shells?

Pond snails use things like rocks or the side of their aquarium as their bed, attaching themselves while they sleep. This might not seem very relaxing but their shells do hang away from their body.
As little as three squares of chocolate can make dogs sick. Duffy Brook

Why can’t dogs eat chocolate?

Chocolate poisoning in dogs remains a problem, particularly at Christmas.
At least in Connecticut, legal advocates can now represent the interests of abused animals. Spillikin/Shutterstock.com

How dogs and cats can get their day in court

When lawyers represent the interests of abused animals in the courtroom, they help human victims too.
Worms do have something in their mouth that they can poke out, like a tongue. It is called a stylet. Flickr/DJ SINGH

Curious Kids: Do worms have tongues?

The short answer is no. But worms can use different parts of their body to do some of the jobs that our tongues do - like tasting and crushing food.
Southpaws seem to be more common among cats and dogs than humans. Eric Isselee/Shutterstock.com

I’ve always wondered: can animals be left- and right-pawed?

The animal kingdom is full of lefties and righties, although rarely is the ratio skewed as much as it is in humans. If you're wondering about your own pet, you can find out with a simple experiment.

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