Long term study finds lemon sharks go home to reproduce

Researchers say they have found the first direct evidence that female sharks return home to breed.

In the study, scientists tracked lemon sharks in the Bahamas for 17 years to prove the case.

Even though this species is highly migratory, pregnant females prefer to give birth where they themselves were born.

The researchers say it strengthens the argument for restrictions on fishing at specific sites.

The idea of females returning to their own place of birth to reproduce has been observed in a number of marine species most notably in salmon but it has also been seen in sea turtles.