胆). These urchins have a strong purple color. It can even change the color of bones. So if an otter’s bones look very purple, we’ll know the otter ate too many sea urchins.It can even change the color of bones ……

Starfish don’t have brains or bones. ……

The Indian giant squirrel has purple fur. ……

The bones of a pigeon weigh less than its feathers. ……

Babies are born with 300 bones, but by adulthood we have only 206. Some bones grow together as we are getting older. ……

Q: When you are born, you have 306 bones. As an adult you have 206 bones. Why? A. Some bones dissolve (分解). B. Some bones fuse (熔合) together. C. Some bones (粉碎) apart. （答案见本期8版） ……

bones. I left with a bright purple cast (固定用敷料). After a few weeks in the cast, I am still... to a doctor who took some X-rays, which showed a crack (裂缝) in my bones. I left with a bright purple cast (固定 ……

MANY birds?feathers (羽毛) weigh more than their bones. ……

Cats have about 240 bones. Which body part has the most bones? It’s the tail. That’s why their tails are so flexible (灵活的). ……

and left with a bright purple cast (固定用敷料) and some souvenir X-rays exhibiting the crack (裂缝) in my bones. After a few weeks in the cast, I am facing a few more weeks of recovery, and if all goes well ……

THERE'S a passion for purple going around. From sweaters to suede on fashion runways, the colour is having its 15 minutes of fame.One surefire sign of its current cachet: purple M&Ms (the chocolate ……

    你真的了解你的骨头吗？你真的了解你的骨头吗？Bones are amazing. When you grow, they grow. When you break your bones, they can repair (修复) themselves. But there is more to bones than just these things. Here ……

婴儿的骨头比成人还多。婴儿的骨头比成人还多。A human baby has 99 more bones than an adult. A baby’s skeleton (骨架... bone through the fusing (结合) of certain bones. Therefore, a baby has around 305 bones, while an adult ……

bones inside the fish. The bones can sometimes get stuck in people’s throats (喉咙). What if the fish have no such bones? Chinese scientists created the world’s first crucian carp (鲫鱼) without those small ……

the scientists grow bones?1. How do the scientists grow bones?A. They grow cells in molds.A. They grow cells in molds.B. They print bones with 3D printers.B. They print bones with 3D printers.C. They use ……