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Ancient Egyptian art reveals shrinking mammal populations

Analysis of ancient Egyptian art has revealed that 6,000 years there were 38 species of large mammals living in the area, compared to 8 species living there today. Ancient Egyptian rock inscriptions and carvings on pharaonic tombs chronicle hartebeest and oryx — horned beasts that thrived in the region more than

How did mammals grow so large after dinosaurs died off?

How did mammals grow so large after dinosaurs died off? According to a new study, the answer all boils down to ecology. The herbivores grew large first, perhaps because they had an advantage in eating the vegetation left flourishing after the plant-eating dinosaurs were gone. Just like with today's lions

Extinct crocodile was mammal-like

The discovery of perhistoric crocodile fossils show that the croc was more mammal-like than reptile-like. Our group, our research team, has been working in southern Tanzania for a few years now and we've found a very exciting new type of crocodile. This animal is very small compared to what

Mammals chewed on dinosaur bones

75-million-year-old bite marks from mammals have been found on the skeletons of dinosaurs. The bite marks are about 75 million years old from near the end of the age of dinosaurs. They are the oldest mammalian tooth marks found yet. Though small mammals existed in the dinosaur era, it was

Prehistoric mammal hair found in amber

Palaeontologists have discovered mammal hair encased in 100-million-year-old amber. While older 2D fossilised hairs are known, those preserved in the amber are the oldest 3D specimens known. The hairs, found alongside a fly pupa in amber uncovered in southwest France, are remarkably similar to hair found on modern mammals. That

Ancient mammals shifted diets as climate changed

Mammals change their dietary based on climate changes, dispelling the common notion that species maintain their diets despite global warming. Led by Florida Museum of Natural History vertebrate paleontologist Larisa DeSantis, researchers examined fossil teeth from mammals at two sites representing different climates in Florida: a glacial period about 1.9 million