来自MSN34 分钟
The Million-Dollar Dive_ Scuba Diving in Search of the $1,000,000 Shark Tooth!
I went scuba diving in total darkness to find a $1,000,000 megalodon shark tooth! With zero visibility, sharks, and ...
Natural History Museum%2c London1 年
What can shark teeth tell us?
The minerals present in the sediment in which it fossilised have turned this tooth black. Sharks belong to a group of fish called Chondrichthyes. Their skeletal structure is made from a light, ...
Scientists capture rare footage of black seadevil anglerfish in shallow water
A Spanish shark research organisation says it may have captured the first footage of a rare deep-sea creature swimming in the ...
Smithsonian Magazine5 年
Megalodon May Be Extinct, but There’s a Life-size One at the Smithsonian
A fearsome killer C. megalodon, often called simply “megalodon,” is famous for its massive size and sharp teeth. Its name in Greek means “big-toothed glorious shark” – a fitting moniker ...