Let's Learn is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and ...
Rebecca Olive receives funding from The Australian Research Council. Every summer, many Australians head to the ocean to swim, surf, sail, kayak, and walk along the beach. But humans are not alone ...
By drawing water into an internal, muscular cavity and forcefully expelling it through a flexible, narrow tube, known as a siphon, cephalopods are able to create forward thrust, propelling themselves ...