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mintbbb (Member Profile)

Octopus Plays With Coconut

grinter says...

Thanks for the article. It kinda reads like an add for Jennifer Mathers' 'octopuses are smart' book. Her 2008 Consciousness and Cognition paper does a better job at laying out the most cephalopod behaviors impressive behaviors:
http://www.sciencedirect.com/science/article/pii/S1053810006001504
. Don't get me wrong; I think cephaolopods totally awesome, but I don't see the case for them being cognitive leaps and bounds above other invertebrates. The behaviors that they are capable of are found elsewhere among inverts, yet people (often encouraged by Mathers or her coauthors on that book) seem to imply they are basically eight armed dogs of the sea:

Behavioral conditioning in the lab (which Mathers likes to call "learning") - Bees, butterflies
Moving objects to close off burrows - mantis shrimp
Carrying objects as temporary refuges - crabs
Individual recognition - wasps, lobsters?, mantis shrimp.
Complex spatial navigation - ants, bees.
Learning via observation - I'm not aware of other inverts that do this, but the cephalopod evidence is also pretty weak.

Maybe there are some more recent, and more convincing results?

Praying Mantis vs. Goldfish

How Animals See The World

rich_magnet says...

Hmm. This could have been done better. I was hoping to see visualizations of:
* Birds' extremely high-speed vision; fast enough to fly through trees' foliage.
* Jumping spiders with 2 focusable main eyes and 6 other eyes.
* Mantis shrimp with their 6+ receptors, including UV, IR and polarization.

Praying Mantis eats fly alive

lucky760 says...

Is that really a fly mimicking a bee? That just looks like a bee to me.

It seems the mantis is smart enough to keep the potential stinger away from itself while munching away.

True Facts About The Mantis Shrimp

Turning Sound Into Light - Minute Physics

grinter says...

To clarify, mantis shrimp don't create sonoluminescence in the same way that pistol shrimp do, by "squeezing their claws together". They create it when the smack things, like snails, really hard with their raptorial appendages.

Another interesting angle to think about: We have all of this scientific interest in sonoluminescence, and the host of cool hypotheses mentioned, not just because it's cool. ..but because, among other things, the Navy REALLY wants to understand the process of cavitation, and throws money at research on the subject. Why? because ship and submarine propellers also create cavitation, and they want to create war machines that are not loud and whose propellers last longer.

World's Deadliest - Mantis Shrimp

Eaten Alive by a Mantis

Eaten Alive by a Mantis

True Facts About The Mantis

True Facts About The Mantis

True Facts About The Leaf Katydid

This Is What A See-Through Bug Looks Like When It Eats

Glass Mantis Eats a Fly



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