Although its body was lizardlike, the structure of its skull resembled a tuatara. It sported similar rows of sharp, interlocking teeth extending directly from the jawbone. The skull also possessed tw… [+1992 chars]
The planets in our solar system come in two forms: Some are rocky, and some are gaseous. But all of the moons in our solar system are rocky, even the ones that orbit gas giants. So why aren't some mo… [+2949 chars]
The iconic Tyrannosaurus rex, or “T. Rex,” might need to be re-categorized into three distinct species, according to researchers. The Tyrannosaurus rex is the only recognized species of the group o… [+5230 chars]
Although its body was lizardlike, the structure of its skull resembled a tuatara. It sported similar rows of sharp, interlocking teeth extending directly from the jawbone. The skull also possessed tw… [+1992 chars]
Archaic humans began reaching Eurasia at least 2 million years ago, but the timeline of anatomically modern types spreading out of Africa is not known. In any case, by 40,000 years ago modern humans … [+10431 chars]
The planets in our solar system come in two forms: Some are rocky, and some are gaseous. But all of the moons in our solar system are rocky, even the ones that orbit gas giants. So why aren't some mo… [+2949 chars]
Miniature spaceships the size of cellphones could fly across the solar system using sails propelled by lasers, which would allow the tiny spacecraft to reach much faster speeds — and, potentially, … [+7649 chars]
Archaic humans began reaching Eurasia at least 2 million years ago, but the timeline of anatomically modern types spreading out of Africa is not known. In any case, by 40,000 years ago modern humans … [+10431 chars]
The planets in our solar system come in two forms: Some are rocky, and some are gaseous. But all of the moons in our solar system are rocky, even the ones that orbit gas giants. So why aren't some mo… [+2949 chars]
Although its body was lizardlike, the structure of its skull resembled a tuatara. It sported similar rows of sharp, interlocking teeth extending directly from the jawbone. The skull also possessed tw… [+1992 chars]
The iconic Tyrannosaurus rex, or “T. Rex,” might need to be re-categorized into three distinct species, according to researchers. The Tyrannosaurus rex is the only recognized species of the group o… [+5230 chars]
Koshima Island macaque (left) and Neandertal (right), both upper central incisors showing large vertical scratches. Credit: Ian Towle and John C. Willman. A study into tooth wear in a group of wild … [+3141 chars]