Our cousins'Homo juluensis' knew how to adapt in the face of an ice age. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. One of the 146,000-year-old stone cores used to make butcher's tools, found in Lingjing, China. Breakthroughs, discoveries, and DIY tips sent six days a week. A remarkable collection of ancient stone tools proves that human creativity can thrive in challenging times.

Science The Weirdest Thing I Learned This Week Why do female reindeer have antlers? Plus wild neutrinos and other weird things we learned this week. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. Breakthroughs, discoveries, and DIY tips sent six days a week. What's the weirdest thing you learned this week?

Breakthroughs, discoveries, and DIY tips sent six days a week. A newly uncovered tyrannosaur leg bone is shaking things up in the dinosaur world. The leg bone uncovered in New Mexico belongs to an unusually large tyrannosaur--the group of dinosaurs that includes the mighty . The shinbone is three feet long and about five inches in diameter, only slightly smaller than the largest known specimen. The giant leg bone is detailed in a study published today in the journal .

An elephant foot bone found by archaeologists digging in southern Spain may be evidence that a troop of war elephants stomped through ancient Europe. It would be the first concrete proof of the legendary Carthaginian General Hannibal's troop of battle elephants, according to academics. Drawings of Hannibal's war against the Romans had long suggested that the beasts were used in fighting, but no hard evidence backed up the theories. Now the creatures' skeletal remains appear to have been found in an Iron Age dig near Cordoba. Beyond ivory, the discovery of elephant remains in European archaeological contexts is exceptionally rare, says the team of scientists in a paper published in Journal of Archaeological Science: Reports.

Recovering the skeletal shape of an animal from a monocular video is a longstanding challenge.

How do you check a hummingbird for broken bones? Micro-CT scans can reveal hard-to-spot fractures in tiny, injured hummingbirds. Breakthroughs, discoveries, and DIY tips sent six days a week. Like clockwork, ruby-throated hummingbirds () start showing up at wildlife hospitals throughout the eastern United States every spring. The jewel-toned birds are often brought in after crashing into windows or being attacked by domestic cats .

Small jaws mean big problems for modern humans. Modern diets gave us smaller jaws--and a lifetime of orthodontic problems. Breakthroughs, discoveries, and DIY tips sent six days a week. Every year, millions of children and teens undergo a common ritual of growing up: getting braces. And it's not just young folks who turn to metal brackets to handle some common dental issues--the Cleveland Clinic estimates that some 20% of new orthodontic patients are over the age of 18 .

Breakthroughs, discoveries, and DIY tips sent six days a week. The is one of evolution's most infamous species--but it's also a very confusing creature. All present-day birds are technically dinosaurs, but the 150-million-year-old, raven-sized hunter is the earliest known example of an avian animal. At the same time, lived during the Jurassic Period among multiple other feathered dinosaurs that were birds in the true sense of the term. But if it's any consolation, it's often still difficult for paleontologists to tell them apart, too.

Fleming went on to win the gold medal. Breakthroughs, discoveries, and DIY tips sent six days a week. From figure skating to ice hockey, many of the most popular winter sports stem from a long history of people simply playing around on ice skates . Part of what makes a good skater so fun to watch is the juxtaposition of their clear technical skill and the seeming effortlessness with which they glide across the ice. They make it seem so natural.