Life Science News. Updated daily with science research articles in all the life sciences.
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Sharks and tuna are overheating and running out of options
Some of the ocean’s fastest and most fearsome predators—like great white sharks and tuna—are running hotter than expected, and it’s costing them dearly. New research shows these warm-bodied fish burn nearly four times more energy than cold-blooded species, forcing them to eat more while also struggling to shed excess heat. As oceans warm, this creates a dangerous “double jeopardy”: rising temperatures push them closer to overheating, while shrinking food supplies make survival even harder.
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This 31-foot “terror croc” ate dinosaurs. Now it’s back
A massive, bus-sized “terror croc” that once preyed on dinosaurs has been brought back to life in stunning detail with the first scientifically accurate full skeleton of Deinosuchus schwimmeri. Stretching over 30 feet long, this ancient apex predator ruled the southeastern U.S. more than 75 million years ago—and now visitors can see it up close at the Tellus Science Museum, the only place in the world with this replica.
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Scientists thought this was a young T. rex. They were wrong
A long-running dinosaur mystery may finally be solved: Nanotyrannus, once dismissed as just a teenage T. rex, appears to have been its own distinct species after all. Scientists analyzed a tiny throat bone from the original fossil and discovered growth patterns showing the animal was already mature, not a juvenile giant-in-the-making. This smaller predator—about half the size of a full-grown T. rex—likely roamed alongside its famous cousin, adding a new layer of complexity to prehistoric ecosystems.
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A crushed fossil revealed a dinosaur that shouldn’t have existed
A badly mangled dinosaur skull, once forgotten in a drawer, turned out to be a rare and important discovery. Reconstructed by a Virginia Tech student, it revealed a new species of early carnivorous dinosaur with unusual features never seen before. The fossil suggests some dinosaur groups were wiped out during the end-Triassic extinction, not just their rivals. It may represent one of the last survivors of an ancient dinosaur lineage.
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Scientists just solved a 160-million-year fossil mystery “I’ve never seen anything like it”
A rare fossil discovery is shedding light on the “missing years” of early sponge evolution. Scientists found a 550-million-year-old sponge that likely lacked hard skeletal parts, explaining why earlier fossils are so scarce. This supports the idea that the earliest sponges were soft-bodied and rarely preserved. The finding changes how researchers hunt for the origins of animal life.
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Mammal ancestors laid eggs, and this 250-million-year-old fossil finally proves it
In the aftermath of Earth’s most catastrophic extinction event, one unlikely survivor rose to dominate a shattered world: Lystrosaurus. Now, a stunning fossil discovery—an ancient egg containing a curled-up embryo—has finally answered a decades-old mystery about whether mammal ancestors laid eggs. Using advanced imaging technology, scientists confirmed that these resilient creatures did reproduce this way, likely producing large, soft-shelled eggs packed with nutrients.
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Scientists discover “cleaner ants” that groom giant ants in Arizona desert
In the Arizona desert, scientists have uncovered a bizarre and almost unbelievable partnership between ants: tiny cone ants acting as “cleaners” for much larger harvester ants. Instead of attacking, the smaller ants crawl over the giants, licking and nibbling their bodies—even venturing between their open jaws—while the larger ants calmly allow it. The scene resembles underwater “cleaning stations,” where small fish groom predators like sharks.
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Light makes plants stronger but also holds them back
Light doesn’t just help plants grow—it may also quietly hold them back. Researchers have uncovered a surprising mechanism where light strengthens the “glue” between a plant’s outer skin and its inner tissues. This tighter bond, driven by a compound called p-coumaric acid, reinforces cell walls but also restricts how much the plant can expand. The discovery reveals a hidden balancing act: light both fuels growth and subtly puts the brakes on it.
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Your DNA has a secret “second code” that decides which genes get silenced
Not all parts of our genetic code are equal, even when they appear to say the same thing. Scientists have discovered that cells can detect less efficient genetic instructions and selectively silence them. A protein called DHX29 plays a key role in this process by identifying and suppressing weaker messages. This finding reveals a hidden layer of control in how genes are used.
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Scientists say we’ve been wrong about what makes sprinters fast
A new international study is shaking up how we think about elite sprinting, arguing there’s no single “perfect” running style behind the world’s fastest athletes. Instead, speed emerges from a complex mix of an individual’s body, coordination, strength, and training—meaning every top sprinter moves differently. Using examples like rising Australian star Gout Gout, researchers show that unique physical traits can produce world-class speed without copying anyone else’s technique.
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The world’s “oldest octopus” was never an octopus
A famous “oldest octopus” fossil has been exposed as a case of mistaken identity. Advanced imaging revealed hidden teeth showing it was actually related to a nautilus, not an octopus. The confusion came from decay that altered its shape before fossilization. This discovery rewrites part of evolutionary history, pushing the true origin of octopuses much later in time.
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Scientists found a “lost world” of animals that shouldn’t exist yet
A remarkable fossil discovery in southwest China is rewriting the story of how complex animal life began, showing that many key animal groups appeared millions of years earlier than scientists once believed. Dating back over 540 million years, the fossils reveal a surprisingly diverse and advanced ecosystem from the late Ediacaran period—before the famous Cambrian explosion. Among the finds are early relatives of starfish, worm-like creatures, and even ancestors of animals with backbones, suggesting that the roots of modern life were already taking shape.
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These bizarre new tarantulas turn mating into a fight for survival
A newly discovered group of tarantulas is so bizarre that scientists had to invent a whole new genus—Satyrex—to describe them. With unusually long mating appendages and fierce, hissing defenses, these spiders are as strange as they are intimidating.
