来自MSN1 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 ...
Female sharks separated from males for 13 years give birth annually, scientists say
Nevertheless, the two 18-year-old females have given birth ... in sharks and other species before: parthenogenesis. Parthenogenesis is the rare process by which an egg turns into a baby without ...
Business Insider India1 年
This walking shark just gave birth to a shark pup — without a male mate around for the ...
On November 1, Brookfield Zoo in the United States joyfully announced the birth of a shark within its confines. What makes this tale intriguing isn't just the captive hatching; it's the revelation ...
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 ...
standardmedia.co.ke1 年
Scientists bank on birth tracking device to boost conservation of sharks
Researchers have developed uterine implants for sharks to help determine where and when they give birth. Researchers say the technology, known as birth-alert-tag, would help establish effective ...