资讯

IFLScience on MSN1 个月
Megalodon Likely Gave Birth To Live Young That Were Already Almost 4 Meters Long
How did they give birth? And why did they go ... “The large neonatal size suggests that Megalodon gave live birth, and like ...
来自MSN4 个月
Do sharks lay eggs? Here's how the fish gives birth and what some eggs look like.
Yes, and no. It depends on the species. Some sharks give birth by laying eggs, while others give birth to live young, Save Our Seas Foundation reports. Sharks that give birth to live young are ...
Natural History Museum%2c London1 年
Do sharks lay eggs?
Lots of animals produce eggs. These protect and provide for offspring as they develop. There are over 500 species of shark living in waters around the world and the majority give birth to live young.
BBC1 年
Lemon shark
Lemon sharks are viviparous, in that they give birth to live young, so when a pup is born it is already a fully formed miniature shark. The mother will risk stranding herself in shallow waters to ...