Discovery of second primate lineage that crossed the Atlantic to settle in the New World. American Association for the Advancement of Science (AAAS) Journal Science DOI 10.1126/science.aba1135.

Primate fossils dating back 30 million years reveal the emergence of a North American mammal lineage that originated in Asia.

Twins have been rare in human history and for that reason can seem special. Many cultures associate twins with health and vitality, while others see them as a philosophical reminder of the duality of ...

New evidence suggests an ancient primate lineage safely traveled from Africa to South America on a raft of vegetation. It was a one-in-a-million chance—and it happened more than once.

We have been researching the evolution of primate litter size – how many babies grow during each pregnancy – for the past several years. To study mammal evolution and reproductive life history ...

Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.

The most comprehensive genomic study ever on primates - a group whose membership includes lemurs, monkeys, apes and people - has revealed pivotal genetic traits that are uniquely human while ...

From there, many primate lineages, including ours, evolved to have increasingly larger bodies and brains. Our new research also shows that the switch from birthing twins to birthing singletons ...

The researchers compared the DNA of two groups of primates: monkeys, which have tails, and hominoids - humans and apes - which do not. They found a mutation in a gene called TBXT that was present ...

You may think Nebraska and China have little in common, but the two places definitely share one ancient similarity: the presence of a 30-million-year-old primate lineage which headed to North ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Our recent research suggests that twins were actually the norm much further back ...