All posts tagged: fossils

745-mile whale graveyard found at the bottom of Indian Ocean

745-mile whale graveyard found at the bottom of Indian Ocean

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. The ocean floor is covered with dead whales–but it is everything but a biohazard. When a whale dies, its body sinks to the ocean floor in a process called whale fall. The carcass then becomes its own complex ecosystem, nourishing and housing all types of marine life. Whale bones can then fossilize over time, leaving behind traces of what life looked like millions of years ago. Now, scientists in the Indian Ocean have discovered an enormous whale graveyard. The collection of bones and communities supported by these whale falls stretches 745 miles across the seafloor 13,779 to 22,965 feet deep. The oldest whale fossil is roughly 5.3 million years old and the graveyard even includes a new species of extinct whale. The findings …

To reconstruct an ancient ecosystem, the proof is in the squirrel poop

To reconstruct an ancient ecosystem, the proof is in the squirrel poop

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. A treasure trove of prehistoric squirrel poop is painting a picture of a lost world. Some of the oldest DNA ever discovered and sequenced lies deep inside these ancient rodent droppings. That fossilized poop (or coprolite) is full of 700,000-year-old environmental DNA from numerous plants, insects, microbes, and large mammals that once lived in Canada’s Yukon, many of which are long gone. A study published today in the journal Nature Communications describes the findings. A rodent time capsule Arctic ground squirrels (Urocitellus parryii) are still alive today. They are widely found within Beringia, a region spanning the Yukon in Canada and Alaska in the United States. They are opportunistic feeders that eat a wide variety of plants, fungi, and insects. They will also …

Velociraptor’s cousin flew like a flying squirrel

Velociraptor’s cousin flew like a flying squirrel

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. The Changma Basin in northwest China’s Gansu province is famous for its many ancient bird fossils. Or, at least, pieces of fossils. Paleontologists have documented over 100 prehistoric avian dinosaur remains buried across the region, many resembling the digestive pellets regurgitated by owls living today. For years, researchers suspected that a similar predator was responsible for the fossil fragments, but lacked a convincing candidate. Experts now have a plausible suspect. According to a study published today in the Annals of Carnegie Museum, a cousin of the fearsome Velociraptor stalked the Changma Basin around 120 million years ago. But with its long feathers and four “wings,” Jian changmaensis didn’t ambush its prey from high in the air like a falcon. Instead, it more likely …

This T. rex could be yours for  million

This T. rex could be yours for $30 million

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. Dinosaur enthusiasts with deep pockets will have their chance to buy one of the largest and most complete Tyrannosaurus rex specimens ever discovered. Meet Gus, a 12.5-foot tall skeleton that took paleontologists three years to excavate. Auction house Sotheby’s values the specimen at $20–30 million, the highest estimate ever placed on a dinosaur. Late cattle rancher Gary “Gus” Licking found Gus on his land in South Dakota. For years, Licking came across teeth and small bone fragments on his ranch, and realized more bones may be lurking beneath the soil. To find out, he recruited Thomas Heitkamp and his team from Theropoda Expeditions. Licking suggested that the team start digging in a 6,500-acre parcel of land. And that’s exactly where Gus was found …

65-foot-long octopuses ruled ancient oceans

65-foot-long octopuses ruled ancient oceans

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Around 100 million years ago, real kraken-like creatures stalked Earth’s prehistoric oceans. According to a study published today in the journal Science, some of the planet’s oldest known octopuses measured nearly 65-feet-long and ruled their underwater domains. “Our findings suggest that the earliest octopuses were gigantic predators that occupied the top of the marine food chain in the Cretaceous,” Yasuhiro Iba, a study co-author and marine paleontologist at Hokkaido University in Japan, explained in a statement, adding that they “may have surpassed the size of large marine reptiles of the same age.” Invertebrates like these are notorious for leaving little trace of their existence. Without bones, there simply isn’t much material to fossilize or preserve for millions of years. But as with today’s cephalopods, the huge octopuses of the Cretaceous Period featured powerful, beak-like jaws used to devour their prey. Unlike the rest of their bodies, these appendages frequently become excellent fossil specimens after coming to rest on the …

450-million year old jellyfish ancestor looks like a flailing carwash tubeman

450-million year old jellyfish ancestor looks like a flailing carwash tubeman

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Jellyfish are delicate, almost ghostly creatures. But under just the right circumstances, these spectral invertebrates can still tell stories long after their death. Not far from Quebec City, Canada marine paleontologists have discovered a new species of invertebrate that swayed in Paleozoic ocean currents over 450 million years ago. Paleocanna tentaculum may not look much like its living descendants, but according to a team of researchers writing in the Journal of Paleontology, the tubular polyp is more closely related to today’s jellyfish than its other ancient cousins. The geological record contains far more examples of vertebrate fossils than invertebrates, or animals without a backbone. Given how few invertebrate samples there are in the fossil record, the study’s authors were particularly excited to finally examine a collection of unique specimens housed at Montreal’s Musée de paléontologie et de l’évolution (MPE). The specimens were first uncovered during a 2010 dig at the Upper Neuville Formation in the Saint Lawrence Lowlands—about 31 …

New megafauna looked like spiky, 30-pound hamster

New megafauna looked like spiky, 30-pound hamster

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. In the latest episode of old museum collections revealing new discoveries, two researchers in Australia have solved a paleontological mystery with an Ice Age fossil first discovered over  100 years ago. The fossil was found in  the underground Foul Air Cave in Buchan, Victoria, Australia. It’s the partial skull of an Owen’s giant echidna (Megalibgwilia owenii), a now-extinct giant echidna that weighed 33.1 pounds and grew up to 3.3 feet-long. The genus name, Megalibgwilia, consists of “mega” (great or mighty in Ancient Greek) and “libgwil” (the Wemba Wemba word for echidna).  “The apparent absence of the extinct large-bodied Owen’s Giant Echidna Megalibgwilia owenii from Victoria is unusual in light of its wide distribution across the continent’s southeast including Tasmania,” the researchers write in a paper recently published in the journal Alcheringa: An Australasian Journal of Palaeontology. “It is the first example of Megalibgwilia identified from Victoria, and reconciles the taxon’s otherwise disjunct southern distribution across mainland Australia.” Though the …

Proto-mammals laid eggs, paleontologists finally confirm

Proto-mammals laid eggs, paleontologists finally confirm

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Every mammal gives birth to live young, except for a handful of egg-laying monotremes like the platypus. But did the earliest ancestors of mammals also reproduce through eggs? It’s a question that’s stumped evolutionary biologists for decades, but researchers finally have a definitive answer. Published on April 9 in the journal PLOS One, their findings rely on a 250-million-year-old fossilized egg, sophisticated technological advances, and a lot of patience. Paleontologists discovered the specimen in question almost 17 years ago during an excavation in South Africa’s Karoo Basin. The arid region located over 200 miles northeast of Cape Town is particularly well known for its vast troves of ancient fossils. “My preparator and exceptional fossil finder, John Nyaphuli, identified a small nodule that at first revealed only tiny flecks of bone. As he carefully prepared the specimen, it became clear that it was a perfectly curled-up Lystrosaurus hatchling,” University of the Witwatersrand paleobiologist Jennifer Botha said in a statement.  Lystrosaurus …

500-million-year-old spider relative has claws where it shouldn’t

500-million-year-old spider relative has claws where it shouldn’t

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. The fossil was completely unremarkable. That’s what Harvard University paleontologist Rudy Lerosey-Aubril initially thought while examining an arthropod fossil dating back to the Cambrian period (538.8 million to 485.4 million years ago).  “As I prepared it, however, it unexpectedly revealed exquisitely preserved limbs—including a pair of frontal claws projecting from the head,” Lerosey-Aubril tells Popular Science. Early arthropod specimens don’t have claws like these. Instead, Cambrian arthropods usually have an antenna in that position. In other words, the claws Lerosey-Aubril was seeing were not supposed to be there.  This unassuming fossil belongs to Megachelicerax cousteaui, a 500-million-year-old sea predator. The fossil was first dug up over 40 years ago in a desert in western Utah and is the oldest known chelicerate—the arthropod group that includes modern spiders, scorpions, horseshoe crabs, and sea spiders. This single strange specimen pushes the evolutionary history of chelicerates back by 20 million years and helps explain the evolution of claws. The findings are detailed …

Bizarro salamander ancestor was an evolutionary oddball

Bizarro salamander ancestor was an evolutionary oddball

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. There are quite a few animals considered “living fossils” in today’s world. Once thought extinct, the prehistoric coelacanth has continuously swam through Earth’s oceans since the time of the dinosaurs. Horseshoe crabs exist in fossil records dating back hundreds of millions of years. Even many sharks look virtually unchanged from their Cretaceous Era ancestors. But although Tanyka amnicola was last seen about 275 million years ago, it was already a living fossil in its own time. It was also an extremely strange creature. So strange, in fact, that paleontologists initially thought they were looking at an ancient aberration when they discovered the first jawbone of this salamander-esque creature in a dry riverbed near the Amazon rainforest in Brazil. “The jaw has this weird twist that drove us crazy trying to figure it out. We were scratching our heads over this for years, wondering if it was some kind of deformation,” recalled Jason Pardo, a paleontologist at Chicago’s Field Museum. …