Paleontologists discover largest dinosaur foot to date

As it turns out, "Bigfoot" was a dinosaur—a giant, plant-eating one. A new study based on fossils excavated in Wyoming reveals the largest dinosaur foot ever found and identifies it as a brachiosaur, a type of sauropod ...

Study signals dramatic change in way ancient diets are calculated

Knowing what extinct animals ate has long been determined by analyzing carbon isotopes locked inside fossil teeth. For two decades, a key isotope value in these equations has been assumed to be the same for all plant-eating ...

First an alga, then a squid, enigmatic fossil is actually a fish

A fossil slab discovered in Kansas 70 years ago and twice misidentified—first as a green alga and then as a cephalopod—has been reinterpreted as the preserved remains of a large cartilaginous fish, the group that includes ...

Tracking endangered mammals with the leeches that feed on them

A broad survey conducted across southern Asia reinforces the idea that the mammal biodiversity of an area can be determined by looking at the DNA found in leeches' blood meals. The new study, led by researchers at the American ...

Cheetahs' inner ear is one-of-a-kind, vital to high-speed hunting

The world's fastest land animal, the cheetah, is a successful hunter not only because it is quick, but also because it can hold an incredibly still gaze while pursuing prey. For the first time, researchers have investigated ...

Study warns that snake fungal disease could be a global threat

New research suggests that a potentially fatal snake fungus found in several species in the United States and three in Europe could be global in scale. The study, published today in the journal Science Advances, shows that ...

page 2 from 16