Of the around 370 species of cycads alive today, almost all of them are toxic to most mammals, with only a few primates able to stomach them. If cycads were this toxic during the Jurassic and ...

Primates first appeared in the fossil record nearly 55 million years ago, and may have originated as far back as the Cretaceous Period. Since that time, this evolutionary lineage has produced ...

3 min read Continents were on the move in the Cretaceous, busy remodeling the shape and tone of life on Earth. At the start of the period, dinosaurs ruled the loosening remnants of the ...

By the end of the Cretaceous, flowering plants had become ... offering novel habitats for what would become tree-dwelling mammals -- primates, which first appeared about 50 million years ago ...

Primates are smart, flexible ... of an ancestor and all of the descendant branches from than ancestor Cretaceous - a geologic period from ~145.5 to ~65.5 million years ago Eocene - a geologic ...