Mackerel sharks (order Lamniformes) are a large group consisting of about 22 species in 10 different families. Some well-known mackerel sharks include: Requiem sharks are large, migratory sharks ...

Love them or hate them, sharks are a vital part of the Earth's ecosystem. Here are some of the places where you may be most ...

Sharks have been around for hundreds of millions of years, appearing in the fossil record before trees even existed. But what did they evolve from, are they 'living fossils', and how did they survive ...

They look quite different to the traditional idea of an egg ... There are more viviparous shark species - which bear live young - than sharks that lay eggs. But throughout Earth's oceans, viviparity ...