Egg-Laying Sharks. Of the approximately 400 species of sharks, about 40% lay eggs. This is called oviparity. When the eggs are laid, they are in a protective egg case (which sometimes washes up on the beach and is commonly called a mermaid's purse).
what s the truth i am asking this b c there seems to be posts on here that say y sperm swim faster which is what we all prob have heard for the longest time but there have been some recent posts on here that state newer studies now say y sperm aren t any faster than x and they can both swim just as fast so im just wanting to know which one is true if anyone really knows thanks
Sperm can live for 72 hours or more after being ejaculated. Acid conditions in the vagina kill half of the sperms.Note: Remaining half is more than 60 million sperms. Dead sperms travel as fast as the live ones. Sperms swim moving at the speed of 1 inch in 8 minutes. Mere few hundred will actually reach the egg. â¦ he body will never run out of it-the production process is always on the go. For a sperm cell to mature it will take about 60-70 days. Although there might still be sperm in the testes after ejaculation, it might take some time to release them as well (after initial release).