mammals

A giant sloth at the entrance to a cave it dug. Illustration: Avi Blizovsky, via DALEE

They were three-and-a-half-ton sloths with claws and armor – and then humans arrived

  • No comments
New research reveals how ancient giant sloths dug caves, thrived in the oceans and moved between diverse environments – until climate change and the arrival of humans led to their extinction
Terrestrial animals display a wide range of limb structures - from 'spread', in which the limbs are held alongside the body, as in lizards, to 'upright', in which the limbs are held below the body and close to the midline of the animal, as in dogs, cats and horses . An upright body structure is a characteristic of most modern mammals, but when did this key feature evolve? Credit: Peter Bishop 

How mammals achieved their upright posture 

  • 2 תגובות
A new study reveals the twists and turns and complexities in the evolution of mammals, from a spread body structure (legs tending to the sides like in reptiles) to an upright body structure where the feet are stable on the ground
When a horse is happy he will point his ears towards you/ Photo: depositphotos.com

Curious Kids: How do you know your best friend is happy, even without a wagging tail?

  • No comments
A dog wagging its tail is one example, and we usually interpret a wagging tail as a sign that the dog is happy. But this is not the only way dogs can express their joy, and there are many animals
An illustration of a Yumac from the Otrichonodont series, which became extinct about 70 million years ago. Source: Oscar Sanisidro, Wikimedia.

Research: Mammals switched to daytime activity immediately after the extinction of the dinosaurs

  • 2 תגובות
Artist's illustration of the asteroid impact that led to the Cretaceous-Tertiary extinction, in which the dinosaurs also died out. Source: NASA / Donald E. Davis / Wikimedia.

The rise to greatness of the mammals

  • 39 תגובות
A herd of mammoths. Illustration: shutterstock

A world is disappearing

  • 14 תגובות
Herds of large mammals cross the Mara River in Kenya's Serengeti Game Reserve. Photo: AndreAnita/Shutterstock

What would the animal world look like without man?

  • 17 תגובות
A female cheetah devours her prey - a Thompson deer cub. Photo: shutterstock

Cheetahs warming up? The fastest animal in nature reaches a running speed of 93 km/h, but is only able to run 600 m

  • 5 תגובות
woolly mammoth. A model from a museum display in British Columbia, Canada. From Wikipedia

In Siberia, the body of a woolly mammoth was found with blood flowing from it

  • 69 תגובות
Deer mouse. From Wikipedia

One gene - many mutations: the gene that controls the color of the mice's fur has evolved nine times

  • 2 תגובות
Ukhaatherium nessovi, a giant Cretaceous-age animal discovered in 1994 in Mongolia's Gobi Desert by the Mongolian Academy of Sciences and the American Museum of Natural History, is one of the many mammals used to study the placental mammal tree of life. When the tiny creature's remarkably well-preserved skeleton was discovered This time, the researchers were surprised to find the presence of epipubic bones, which were attached to both sides of the groin. Today this feature is only found in egg-laying mammals such as the duck and marsupial mammals such as the kangaroo. But their presence in this fossil showed that the first placental mammals also shared the same feature.

The oldest placental mammals, lived right after the end of the dinosaur period

  • 9 תגובות
Laboratory mice suffering from brain white matter damage syndrome. Photo. Yuval Kabili, Tel Aviv University

Blood brothers - the house mouse and the wild mouse

  • One response
Brown mouse lemur in Madagascar. From Wikipedia

Lice don't lie / Christy Wilcox

  • No comments
American brown bear. From Wikipedia

did you know Bears know how to count

  • 8 תגובות
A common thistle eats the fruit of the desert mulberry and spits out the seeds while eating. The seeds that remain intact after eating can be seen lying on the ground and between the forelegs of the spiny. Photo: Michal Semoni-Blank

The Technion researchers found how the fruit's defenses turn a seed predator into a quality spreader

  • 6 תגובות
The wild bull - painting in Lescaux cave, France. From Wikipedia

Eating meat is responsible for the evolutionary success of the human race and the expansion of the world population

  • 43 תגובות
Meerkats - Rise of the Guard

The thief is crazy ... exempt?

  • 3 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The slaughter of elephants increased

  • 21 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The gray wolf has been removed from the endangered species list

  • 12 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

When Teddy the elephant is fed up - you should keep your distance. The sensor will tell when

  • 2 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Who gave the wolf its black color?

  • No comments
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

A lone wolf, and soon that too

  • 4 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Truth or fiction - do animals like to get drunk?

  • 9 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

A fossil of the oldest rabbit has been discovered

  • 47 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

His face and heart are equal

  • One response
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The mammal elite is not related to the extinction of the dinosaurs

  • 8 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Mammals grew due to the increase in the amount of oxygen in the air

  • One response
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Ant-eating mammals existed alongside the dinosaurs

  • No comments
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

American researchers: we found a bonobo chimpanzee that may have learned to talk

  • 2 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The origin of the dogs - they were domesticated in western China, not in the Mazat, 15 years ago

  • No comments
Science website logo
SEARCH