#UnSharkWeek Sharks Don’t Fly, but Squid Do!

Squid move by pumping water in and out of their bodies. Propulsion comes from using the water itself, sucked into the mantle and squeezed out through a smaller tube called a siphon in a series of strong pulses. By finely manipulating their siphons, squid maintain precise control the water stream: volume, intensity, and direction. All cephalopods carry siphons, even the lumbering octopus, but squid get the most mileage from them.

Water is heavy, so you’d expect slow acceleration from a squid. Not so: powerful rings of muscle surround the mantle, squeezing a huge amount of water through the siphon and creating large accelerations. They’ve also got a secret weapon for emergencies: a lightning-fast escape mechanism.

Read the rest of the story here.

Join us from February 3 – 8 as we celebrate UnShark Week

What is UnShark Week, you ask?

A birthday held six months away from the real one, is an UnBirthday. So, for the thousands of ocean species that are just as interesting and sometimes more extreme than sharks, we propose the week of Feb 3-8, 2014 as UnSharkWeek.

UnSharkWeek will introduce fans of Shark Week to other extreme forms of life in the sea. There are all sorts of really cool things happening in the harshest environments on Earth, so join Steve Palumbi, one of the world’s leading marine biologists, as he celebrates some of the deepest, fastest, oldest, and just plain strangest creatures found in the ocean.

Follow along here: http://unsharkweek.tumblr.com/

For more information about The Extreme Life of the Sea by Steve and Anthony Palumbi or to read an excerpt from the book, please visit this web site: http://press.princeton.edu/titles/10178.html