they discovered that whale sharks give birth to live babies. A pregnant female that died had more than three hundred babies , or pups , growing inside her . The growing sharks were 16 to 24 inches ( 42-63 cm ) long . Some were more deve...
百度试题 结果1 题目(T)3. Some sharks give birth to live sharks and others lay eggs. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Scientists still have much to learn about how Greenland sharks live and reproduce. Female Greenland sharks give birth to live young, called pups, that hatch from soft eggs that females carry inside their bodies. In a 2020 study published in the journalPLOS One, researchers estimated that Green...
The gestation period is roughly 12 months, after which the female will give birth to 1-6 pups. A new born Gray Reef Shark pup is usually 45-60 cm (15.7-23.6 inches). The Gray Reef Shark is a typically found at or nearby continental and insular shelves. As the name suggests, it ...
How do whale sharks give birth? Do whale sharks have baleen? How are whale sharks endangered? Are whale sharks extinct? Do sharks attack humpback whales? Do whale sharks live at the bottom of the sea? Do whale sharks have live births?
Around 25% of all sharks lay eggs. Most sharks do not lay eggs and instead give birth to live young that have developed inside the mother’s body. The eggs of oviparous (egg-laying) sharks are encased in leathery pouches known as “mermaid’s purses”, which protect the embryo as it...
5. Are there any species that give birth to live young despite being capable of laying eggs? Yes, some of them, like the great white shark, can produce both eggs and give birth to live young, depending on certain factors. 6. Is a shark a mammal or a fish?
For viviparous (live-bearing) sharks these questions are mostly unanswered. The reason? The pups of most shark species are born in deep (pelagic) waters that are logistically challenging to study. Some sharks, however, choose coastal, near-shore areas to give birth, habitats that are likely ...
Tiger sharks mate, with the male inserting a clasper into the female to release sperm and fertilize her eggs. The gestation period for tiger sharks is believed to range from 13 to 16 months, and a female can produce a litter every two years or so. Tiger sharks give birth to live young...
A. The others give birth to live young. B. Sharks are important for the health of the world's oceans. C. This is a threat to other form of life in the ocean. D. Collectors pay thousands of dollars for the jaws of a shark. E. Sharks are valuable to us and we can make full us...