Male sharks and rays are easily
identified by the presence of two finger like reproductive organs called claspers
extending out from the pelvic fins. During courtship and mating the male
shark takes hold of the female with his teeth.
Unlike bony fishes sharks and rays fertilized females internally by
inserting one of the claspers. The female is often left covered in
wounds from the tight grip of the male’s teeth on her skin.
Some sharks lay eggs which hatch after a couple of months however other species
and most Rhea species give birth to live young.