The answer is the Tyrannosaurus rex (霸王龙). This dinosaur lived in North America over 65 million years ago. It has a giant body, big head, sharp teeth and strong legs. All of these make this animal the most powerful hunter in nature. But look at its arms. They are so small and ...
Tyrannosaurus rex’s famously tiny arms aren’t a joke. Sure,they’re comicin how disproportionate they are for one of Earth’s most ferocious predators. But Stanley argues that T. rex’s arms were weapons of mass destruction, as big and strong as a man’s leg, with two 4-inch claws ...
You might be surprised to know that T. rex teeth are not actually very sharp. They have blunt tips that don’t pierce through the skin like a sharp knife. Instead, the sides of the teeth are serrated, allowing them to chomp down on their prey and rip the flesh apart. Even so, their...
However, some scientists argue that T. rex wouldn't have been at all successful as a predator. Its arms are virtually useless in any hunting scenario, and its body is so large that it could have been fatally injured after a simple fall. Instead, T. rex might have been a scavenger. ...
Researchers had long thought that inbreeding caused a genetic meltdown in the last mammoth population, but a new ancient DNA analysis says otherwise.
搜索智能精选题目When we are introducing objects, presenting options and facts, and distinguishing between points, ideas, and facts, what gesture can we use? A. The "Give" B. The "Chop" C. The "Show" D. "T-rex" arms答案A
Why did the T rex have such tiny arms? And why do so many more kids need glasses now than they used to? Spoiler alert, it isn't screen time. Our team of scientists digs into the research and breaks it down into a short, entertaining explanation, jam packed with science facts and ter...
called(call) abelisaurs.These dinosaurs walked on two legs and had very short arms,even (2) shorter(short) than those of North America's Tyrannosaurus rex.The short arms may have forced Guemesia (3) to depend(depend) more on its powerful skull and jaws. "Guemesia is...
When we are introducing objects, presenting options and facts, and distinguishing between points, ideas, and facts, what gesture can we use? A. The “Give” B. The “Chop” C. T
Finally the 36 they had been waiting for came as I called out, "One, two, three. Open your presents!" As the children opened their packages, their faces beamed and their bright smiles 37 up the room. The 38 in the room was obvious, and 39 wasn't just about toys. It was a ...