While sleep is a crucial component of survival for all living organisms, some animals take the concept of sleep to an extreme ...

Researchers in Costa Rica have uncovered ancient mastodon and giant sloth fossils, shedding light on the prehistoric giants ...

Sometimes it nice to just kick back and take it slow. Really slow. So what if evolution had the same mindset, and decided to ...

Costa Rica's Museo Nacional announces a groundbreaking fossil discovery in Cartago, including remains of a mastodon-like ...

Researchers have so far recovered 49 bone pieces including a femur, vertebrae and ribs from the mastodon and giant sloth ...

Handout picture released by Costa Rica's Ministry of Culture showing archaeologists from the National Museum of Costa Rica ...

Researchers in Costa Rica have unearthed fossils from a mastodon and a giant sloth that lived as many as 40,000 years ago, ...

Kakapo are flightless, nocturnal parrots shaped by an island history with few mammalian predators. Males use deep booming ...

The Queen gets to tell everyone what to do, and she chooses a few males to breed with, we believe,” says Kerns. “However, she can have one of the largest litters of any mammals, over 30 babies at a ...

Long before today’s tree-dwelling sloths, a 4-ton giant roamed South America — and it may have stood and fought like a bear.

The world’s largest palaeoburrow is located in the Amazon Rainforest and is so long it’d take you roughly 20 minutes to walk ...

Some tropical land regions may warm more dramatically than previously predicted, as climate change progresses, according to a new CU Boulder study that looks millions of years into Earth's past. Using ...