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Earth’s first few hundred million years brought relentless impacts, intense volcanism and an atmosphere almost entirely devoid of oxygen—yet genetic analysis places the common ancestor of all life alive today around 4.2 billion years ago, suggesting biology gained a foothold remarkably soon after the planet became habitable.
8+ hour, 19+ min ago (1496+ words) A genetic reconstruction dates the last universal common ancestor to about 4.2 billion years ago, implying life emerged before that complex anaerobic ecosystem. By Life Signs · Edited by Lachlan Brown Published August 26, 2026 · How we edit The result does not date the…...
Researchers have documented mugger crocodiles and American alligators positioning sticks and twigs on or around their snouts during birds’ nesting season — apparently using the sought-after nesting material as bait to lure birds within striking distance.
4+ day, 12+ hour ago (789+ words) Crocodiles may be smarter than we thought—or we may be reading too much into their stick-gathering habits near nesting birds. By Life Signs · Edited by Mal James Published August 22, 2026 · How we edit A crocodile lies still in shallow water…...
About 70 million years ago, a year had roughly 372 days, which means each day ran about half an hour shorter than yours. The figure was read from the growth layers of a single fossil clam from the mountains of Oman
2+ week, 1+ day ago (230+ words) Ancient clams have left us a record of Earth's rotation written in their shells, revealing a planet that spun faster in the age of dinosaurs....
There's a bird in Uganda's swamps so strange-looking that tourists who finally spot one don't just call it rare, they call it prehistoric — a four-foot-tall creature with a hooked, razor-edged bill that looks like it wandered out of the age of dinosaurs
2+ week, 2+ day ago (665+ words) Scientists still don't fully understand why this prehistoric-looking wading bird evolved one of nature's most fearsome bills—or how it survives on so little effort. Published August 10, 2026 · How we edit Boats go quiet when the guide points. Out in the…...
A newly identified order of Australian marsupials survived in Queensland rainforests for more than 35 million years, and it vanished so completely that no descendants of it are alive today
3+ week, 16+ hour ago (224+ words) A vanished lineage of marsupials ruled Australian rainforests for 35 million years, leaving behind only scattered teeth and jaw fragments—and no living descendants to tell their story. By Space Daily Editorial Team · Edited by Nato Lagidze Published August 5, 2026 · How we…...
A single Nile crocodile bite closes with roughly 3,700 pounds of force per square inch, more than any measured living animal, yet the muscles that open the same jaw are so weak an adult can hold them shut with two hands
3+ week, 3+ day ago (865+ words) A Nile crocodile's bite closes with about 3,700 PSI — the strongest bite force ever measured in a living animal — yet the muscles that open the same jaw are so weak an adult can hold them shut by hand. That asymmetry is…...
In 1974 in Ethiopia a team dug up a skeleton that pushed the human story back millions of years: 'Lucy,' about 3.2 million years old, showed that our ancestors walked upright long before they ever grew big brains
3+ week, 6+ day ago (566+ words) The discovery of Lucy overturned a century of assumptions about what made us human—and revealed that walking upright was our first, not final, evolutionary gamble. By Mal James · Editorial process Published July 30, 2026 Many scientists once had the human story…...
Most dinosaur fossils show bone. This one, a juvenile plant-eater from northeastern China, preserved individual skin cells inside hollow, porcupine-like spikes — a skin structure that existed for 125 million years without anyone knowing it was possible
4+ week, 22+ hour ago (1289+ words) Cellular preservation inside hollow spikes reveals skin architecture no paleontologist knew dinosaurs could evolve—and it rewrites what's possible to find in stone....
Palaeontologists were preparing to leave the Egyptian desert when they noticed teeth protruding from the ground — and uncovered the skull of a 30-million-year-old apex predator
1+ mon, 1+ week ago (381+ words) The 2020 field season in Egypt’s Fayum Depression was almost over when palaeontologist Bilal Salem saw teeth projecting from the desert floor. The fossil...
In 1994, a park ranger abseiling into a canyon 150 kilometres northwest of Sydney found a stand of trees with knobbly bark that matched 90-million-year-old fossils, and the Wollemi pine's exact location is still classified
1+ mon, 1+ week ago (127+ words) In September 1994, off-duty NSW park ranger David Noble abseiled into a slot canyon 150 kilometres from Sydney and found a stand of trees that matched 90-million-year-old fossils. Fewer than 90 wild Wollemi pines remain, and the Australian government still keeps the grove's…...