Competitive swimmers know that swimming underwater causes less drag resistance than swimming at the surface. Splashing around ...

If you're setting out to build an underwater robot that's speedy ... swimming speed close to that of a real sea turtle, and that it could conceivably swim all day if it were to periodically ...

A diver came up close to a sea turtle off the coast of Siquijor in the Philippines. Biden sparks legal battle by declaring Equal Rights Amendment is now 'law of the land' Great TV couples that ...

Competitive swimmers know that swimming underwater causes less drag resistance than swimming at the surface ... or rather they have evolved swimming behaviour that minimises wasted energy on long ...