Comprehensive coverage

mass extinctions

The evolution of horses. Image: Mcy jerry w CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=98977446

A new evolutionary theory explains why animals shrink over time

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Research: A New Understanding of Animal Size Changes Over Time: Competition, Ecological Pressures, and Cope's Law
An infographic illustrating the geological periods and the major extinctions in between. Illustration: shutterstock

Assessment: Huge emissions of C02 from volcanic activity caused a mass extinction of species about 200 million years ago

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Skull of a Neanderthal who was hit in the head. Evidence of ancient violence. Photo: Smithsonian National Museum of Natural History

Were other human species the first victims of the sixth mass extinction?

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Asteroid impact on Earth. Image: NASA

The asteroid that collided with the Earth 466 million years ago actually strengthened life

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The extinction of the dinosaurs. Illustration: shutterstock

The dinosaurs thrived before the asteroid hit wiped them out

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The Earth and the Moon are being bombarded by asteroids at an increased rate. Illustration: shutterstock

The Earth and Moon have had many more asteroid impacts since the age of the dinosaurs

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Flying dinosaurs. Illustration: shutterstock

The asteroid wiped out almost all the birds along with the dinosaurs

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The fall of the asteroid and the extinction of the dinosaurs. Illustration: shutterstock

Why did the dinosaurs become extinct?

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Endangered animals - the polar bear and the snow leopard. FROM PIXABAY.COM

Global warming as a "joke"

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Dr Nick Longrich from the Milner Center for the Study of Evolution. Photo: Anthony Prothero, University of Bath

The mammals almost went extinct with the dinosaurs

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The celestial body that wiped out the dinosaurs. Illustration: shutterstock

What killed the dinosaurs?

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Image: A toothless chicken may have been the ancestor of modern birds. Illustration: Danielle Dufault

The birds survived the extinction of their dinosaur relatives thanks to the ability to eat seeds

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A herd of mammoths. Illustration: shutterstock

A world is disappearing

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Biodiversity, a collage of plants and insects. Photos: shutterstock

Biological diversity - status report

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A fossil of a trilobite - a common animal in the Permian period. Photo: shutterstock

Microscopic mass murderer / Cary Arnold

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Horned rams, a species that is extinct in the wild and remains only in zoos and breeding centers. Photo: shutterstock

Are we in the middle of the sixth extinction?

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A red star near the Solar System as imaged by the Next Generation Digital Sky Survey camera following the WISE survey. Photo: Credit: DSS/NASA/JPL-Caltech

NASA: Despite a comprehensive scan of the solar system's environment, Wise did not discover Planet X

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The meteor that exploded in Russia on February 15, 2013 as seen by the Metosat 10 satellite

Opinion/ Meteorite impact and extinction of dinosaurs - we should act to prevent man from a similar fate

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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

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brown bear From WIKIMEDIA COMMONS

heat shrink?

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Asteroid impact on Earth. Image: NASA

The consensus around the assertion that an asteroid killed the dinosaurs is getting stronger

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the great death

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The orbit of the comets brings them to justice, less endangering the earth

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A new theory about the Great Mass Extinction

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Does the movement cycle of the Milky Way affect the biological history of the Earth?

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