A shark expert, whose own curiosity about these fascinating fish was sparked by the movie "Jaws," explains some of their ...

Researchers from the UAB have shown that sex hormones accumulate in the skin of sharks. This finding opens a new way for the ...

Researchers of the UAB have shown that sex hormones accumulate in the skin of sharks. This finding opens a new way for the ...

Sharks suffer from a serious PR problem. Popular media have long misrepresented them as mindless brutes. But walk through the ...

The catshark also has an interesting reproductive cycle where some females can store sperm for up to six months before releasing embryos to be fertilized. #5 Southern Pink Underwing Moth Caterpillars.