What did early humans like to eat? The answer, according to a team of archaeologists in Argentina, is extinct megafauna, such as giant sloths and giant armadillos. In a study published in the journal ...

Ancient sloths lived in trees, on mountains, in deserts, in boreal forests and on open savannas. Some grew as large as elephants. Illustration by Diego Barletta The largest sloth of all time was the ...

WOODSIDE, Calif. (AP) — Nestled in forests around the world, a gentle army of giant wooden trolls want to show humans how to live better without destroying the planet. The Danish recycle artist Thomas ...