Making me glad I'm not an ecdysozoan

But timelapse is always cool.

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Here's another of Casey Dunn's Creature Casts, this time on shifting color spots in marine snails. CreatureCast - Flamingo Tongue Snails from Casey Dunn on Vimeo. Pigment cells are always very, very cool. I've been intrigued by them for a long time — they show up in my time-lapse recordings of…
This is just cool. No behavior, no cognition, no neuroscience. Just animal awesomeness. Amazing time-lapse video of a twelve-foot spider crab molting. Watch til the end. From Neatorama, via @kzelnio (of Deep Sea News)
By DAY 7, the little guys aren't so little anymore... Now that we can see some details on these guys, let's learn a little about what we're looking at. Painted lady caterpillars have three pair of true legs, located closest to the mandible. The remaining five pair are called pro-legs or false…
Here's your weekly round-up of fun and fascinating: To start with, I did a 6-part series on numerical cognition and the development of math skills, here and at Child's Play: 1. The Developmental Origins of Numerical Cognition 2. What is Dyscalculia? How Does It Develop? 3. Developmental Dyscalculia…