Urban birds like house finches and house sparrows are great at finding materials to repel pests and parasites from their nests. Unfortunately, one of those materials is used cigarette butts.

Although they don’t seem like the talkative type, recent research suggests that bird eggs can use vibrations to relay warnings about the outside world to their nest-mates.

In what seems like an inefficient use of resources, these penguins always lay two eggs, but then ignore, discard, or just straight-up destroy the first one. What gives, penguins?

What if you could just drop your kids off at someone else’s place and let them have the responsibility? Well, there are some animals that do just that. They’re called brood parasites, and they lay their eggs in other animals’ nests and...

You probably know that Australia is famous for giant snakes and spooky spiders... but oh... there's SO much more. Join Hank Green as he shows you seven truly terrifying Australian inhabitants that you might not have heard of—and some are...

Animals have all kinds tricks to help them get through the winter, but there are things people can do to help them out! Join Jessi and Dino to learn about how you can help the birds in your neighborhood have a safer, warmer winter.

Parasites. They’re all around us, from birds’ nests to litter boxes to our brains, and while plenty of them are harmful to the health of animals like us, some of them can actually be good!

They're probably the most successful birds in the history of birds. But what do you really know about pigeons? Hank shares three weird facts about the birds, from their amazing chick-raising trick to their history of heroism in wartime.

A mother honeyguide has placed its chick into a bee-eater's nest— puncturing all the other eggs in the nest and leaving only its own hatching alive. Over the following weeks, the host parents devotedly care for the hatchling whose mother...

Although they don’t seem like the talkative type, recent research suggests that bird eggs can use vibrations to relay warnings about the outside world to their nest-mates.

If you've spent any time on the internet, you know that Australia is host to all sorts of horrible spiders and snakes. But that doesn't even begin to cover the myriad of dangerous, sometimes deadly, plants and animals you...

For some birds, trying to cheat your neighbors into raising your babies is just as much work - and is no more successful - than doing it yourself.

While not the kind of epidemic you're used to hearing about, nearsightedness is becoming a major health issue in many places. Learn about how scientists are finding out the reasons behind the increase in myopia, and how sunlight might be...

What if you could just drop your kids off at someone else’s place and let them have the responsibility? Well, there are some animals that do just that. They’re called brood parasites, and they lay their eggs in other animals’ nests and...

Get a bird's eye view on flamingos and pink backed pelicans raising their chicks.

Howcast - Make a chicken scratch in your itch for pets. You can raise your own baby chicks at home with the proper equipment and care.

Learn why this hatch is so significant.

See what goes on during the fledging stage with the beautiful white fronted bee eaters at the San Diego Zoo.

These birds have one of the most complex social structures in the world.

Get a bird's eye view of Wesa's condor chick imprinting process and learn why a single feather is so special.

Get a bird's eye view on flamingos and pink backed pelicans raising their chicks.

Also, see what goes on during the fledging stage with the beautiful white fronted bee eaters at the San Diego Zoo.

Take a quick tour of the rookery at the San Diego Zoo and peek at how these animals tend to their young.

Get a bird's eye view on flamingos and pink backed pelicans raising their chicks.