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Profile picture for user pharyngula
By pharyngula on June 29, 2011.

(via Science-Based Parenting)

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cephalopods
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Friday Cephalopod: I succumb to peer pressure and will mention Octopolis
September 22, 2017
Wow. Every person on the planet saw one version or another of this "Octopolis" story and had to send it to me. It was the subject of a Friday Cephalopod a year ago, you know. Apparently, this is the second octopus city discovered, which is interesting -- they're exhibiting more complex social…
Friday Cephalopod: we all float down here
September 15, 2017
Pale, drifting quietly, long grasping arms, cold and anoxic…we all float down here. Yes, I'm going to go see It this evening. It won't be half as creepy as the reality of the dark deep, though.
Friday Cephalopod: Reflecting my current mood
September 8, 2017
Stephanie Bush
Friday Cephalopod: Sinking blue
September 1, 2017
I think it's a portrait of my mood right now.
Friday Cephalopod: Undead Squid Penis
August 25, 2017
First, a little background: When squid mate, a male transfers its sperm to a female enclosed in complex structures called spermatophores. These are accumulated in the spermatophoric sac, a storage organ inside the mantle cavity, before ejaculation through the penis. Squid that spawn in shelf waters…

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Cooperation and Experimental Evolution
Cooperation and altruism are widespread in biology, from molecules and genes working together in a cell, to bacterial communities that require coordinated behavior to survive in a tough environment, to human relationships and societies. Our human cultural perspective (perhaps even more specifically our American cultural perspective, focused as it is on individuality, free markets, and the…
Clubs, spurs, spikes and claws on the hands of birds (part I)
All too few people seem to realise that birds have hands*; it's just that these parts of the body are - normally - mostly obscured from view by the feathers. While the main role of the bird hand is to support remiges (the big wing feathers), less well known is that many birds possess claws, spurs, spikes and knobs on their hands and wrists that they use in offence or defence [avian hand…
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