New study reveals how placental mammals evolved long pregnancies and complex placentas using single-cell transcriptomics across six species.

Was the First Mammal to Live on Earth the Morganucodon or Brasilodon? Experts Still Debate Learn more about Morganucodon and Brasilodon, the two species that may have given life to the mammals we know ...

Just one look at these beaver-tailed, egg-laying, duck-billed weirdos makes you wonder how we're even both mammals. But I have news for you - when it comes to mammal lifestyles, monotremes aren't the ...

It turns out, not very. Yes, like all placental mammals, cats do have belly buttons. Mammals fall into three main categories: placental mammals, marsupials, and monotremes.

Here’s what happens to foods and beverages as they make their way through your gastrointestinal tract — and the problems that can develop along the way.

Discover the digestive system and understand its intricate processes. From mouth to the intestines, learn about each organ's role in digestion.

University of Bristol’s Emily Carlisle explains how she and her team used a new method of interpreting the fossil record to estimate the age of placental mammals.

New research shows that placental mammals survived the mass extinction that killed the dinosaurs.

The ancestor of all placental mammals survived the dino-killing asteroid The ancient relative of humans, dogs, and bats briefly coexisted with the likes of Titanosaurs and Triceratops. Laura Baisas ...

All the latest science news on placental mammals from Phys.org. Find the latest news, advancements, and breakthroughs.

This was surprising, since bats (placental mammals) last shared a common ancestor with the marsupial sugar glider around 160 million years ago.