Spiders

It's a tarantula the size of a dinner plate, known to eat birds.

Snakes eat birds, which eat spiders. No birds, more spiders.

What we do know about spiders and other arachnids: They are very diverse.

More than 43,000 spider species are known and at least that many remain undiscovered, they say. Catch a glimpse of their incredible diversity.

The brown widow spider is encroaching on black widow territory, a new study suggests.

After ditching their genitals, male spiders get an extra dose of endurance due to their decreased body weight.

A new study may take away one tarantula's superhero powers.

Shedding skin can defend against parasites.

The thread, which has not been dyed, is the silk from the golden orb spider.

Jumping spiders gauge distances by compared a focused image with a defocused image.

Orb web spiders deposit anti-ant compounds to ward off thieves

Like paying a prostitute with counterfeit bills, male nursery web spiders sometimes pay with worthless gifts that distract the female while they mate.

Two ancient types of harvestmen, or daddy longlegs, which skittered around forests more than 300 million years ago, are revealed in new three-dimensional virtual fossil models.

Research indicates that male black widow spiders prefer well-nourished females.

A tarantula's heart, revealed by an MRI.

Check out these amazing arachnid scuba divers.