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15 hours ago · 15 min read. Humans Are Driving a New Kind of Evolution in Animals. Anthropogenic evolution is affecting species across the planet. By Lee Alan Dugatkin. Tree Swallow. Donald M. Jones/Minden ...
5 days ago · The ocean fossil record is a rich archive that provides a window into the life that has inhabited Earth’s seas over billions of years. It encompasses the remains and traces of marine organisms embedded in sedimentary rock layers. As researchers study these fossils, they learn about the various forms of life, from microscopic plankton to ...
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1 day ago · Scientists can't agree on when the first animals evolved—research hopes to end the debate Oct 16, 2023 Key moment in the evolution of life on Earth captured in fossils
4 days ago · Marine mammals are mammals that rely on marine (saltwater) ecosystems for their existence. They include animals such as cetaceans ( whales, dolphins and porpoises ), pinnipeds ( seals, sea lions and walruses ), sirenians ( manatees and dugongs ), sea otters and polar bears. They are an informal group, unified only by their reliance on marine ...
1 day ago · May 13, 2024. Despite their majestic presence in the ocean depths, whales share a surprising secret, they're warm-blooded mammals, just like us. They breathe air, give birth to live young, and nurture them with milk. This lineage takes an even more fascinating turn when we discover their ancestry. Millions of years ago, whales weren't ocean ...
4 days ago · Placental mammals, the largest group of mammals, nurture their young in the womb through a specialized placenta. This group encompasses diverse species, including humans, dogs, cats, elephants, and whales. Placental mammals have evolved various adaptations and display a wide range of behaviors and anatomical features.
15 hours ago · These humans spread rapidly along the coast of Asia and reached Australia by around 65,000–50,000 years ago, (though some researchers question the earlier Australian dates and place the arrival of humans there at 50,000 years ago at earliest, while others have suggested that these first settlers of Australia may represent an older wave before ...
