Carys Matthews

From the tiniest insects to the largest land animal on Earth, here are some of the most dangerous and deadly creatures in the world.

Some of the world's animals produce ear-splitting sounds — and some the loudest out there may come as a surprise.

When and where will the double cicada brood emerge? Here's what to expect from this rare phenomenon, which occurs only once every 221 years.

From chimps that wage war over territory to parrots that outperform Harvard students on memory tests, many other members of the animal kingdom demonstrate surprisingly human-like behavior.

South Asian fishing cats have been caught on camera hunting chicks in tree tops, potentially solving the mystery of how this vulnerable species survives during the monsoon season.

Crocodile-like skin from a reptile is 130 million years older than the previous record for fossilized skin, researchers say.

Gigantopithecus blacki went extinct at least 215,000 years ago after climate change caused its forest home to vanish.

Scientific research on how cats view us is mixed, but one thing is clear — they don't adore us the way dogs do.

From the coelacanth to the cockroach, these "living fossil" creatures haven't changed much in millions or even hundreds of millions of years.

A fossilized plant in a museum collection contained the oldest known disease-causing fungus, with microscopic images showing it bursting through the plant's wall.

Dominant female meerkats' quest for dominance may be down to genes that give them the upper hand.

Jonathan, the world's oldest tortoise, has turned 191, living through 40 U.S. presidents and 31 St. Helena governors.

Researchers recorded the movements of ocean predators and found many diving to depths of over 3,200 feet for reasons that are currently unclear.

Fossilized bird tracks discovered in Australia show these ancient creatures lived in the southern polar regions on the supercontinent of Gondwana.

True crabs evolved to migrate between marine and land environments multiple times throughout their 250 million-year-old history, new study finds.

Coastal wolves in Alaska have learned to kill marine mammals, and have developed a "unique" lone hunting strategy to take down prey, scientists have said.