Monday, February 20, 2012

Squid Skin Camoflage

Camouflage expert Roger Hanlon of the Marine Biological Laboratory (MBL) is co-recipient of a $6 million grant from the Office of Naval Research to study and ultimately emulate the ability of some marine animals to instantly change their skin color and pattern to blend into their environment.  Hanlon and his team will perform experiments with cephalopods to determine how opsin molecules receive light and aid the animal's visual system in adjusting skin patterns for communication and camouflage. The project team's engineers will focus on emulating cephalopod skin using new metamaterials – materials that blur the line between material and machine.
This project is really the epitome of what I love about science.  I truly feel that one of the best applications of science is to learn from biology to improve our lives.  Granted, while this is going to be used for military applications, I could see an application for instant color change in domestic life.  I mean, if the technology became cheap then it could be used for paint or clothing.  And in general, I think this type of research is amazing.

Thursday, February 9, 2012

Pink River Dolphins

So normally I talk about marine biology news.  This time, however, I feel like talking about marine biology.  So I'm going to talk about pink dolphins.  The Amazon River Dolphin is the largest river dolphin, reaching lengths of 1.7-3.0 meters.  It is a native of South America, and can range from being a vivid pink (for older, larger individuals) to a blue-gray or beige.  Unlike other dolphins, the Amazon River Dolphin has a flexible neck and a hump with a ridge instead of a dorsal fin.  These dolphins have very poor eyesight, have been known to swim upside down, and use echolocation to find prey.  The Amazon River Dolphin lives probably around 30 years, lives in the Amazon Basin and Orinoco, and has been known to (during flood season) explore the jungle (an adventure which could leave the dolphin stranded.  I find this creature extremely fascinating.  Aside from its obvious differences from dolphins, the slight adaptive abilities (like very strong echolocation) have molded this creature to be extremely unique.  Also, I am extremely interested in finding out why the dolphin's pink color is permitted to develop (the color is obtained due to the dolphin's diet) as it would seem to be an evolutionary disadvantage.  Anyway, I find this creature fascinating, and just wanted to share a bit about it with the world