Pharyngula

Archives for May, 2017

Where do numbers come from?

When I was addressing this lunacy about how God exists because minds and mathematics are supernatural, I was also thinking about a related set of questions: biologically, how are numbers represented in the brain? How did this ability evolve? I knew there was some interesting work by Ramachandran on the representation of digits and numerical…

I usually only have good things to say about cephalopods, but it’s hard to avoid the truth here: vampire squid aren’t exactly beauty queens.

This is an echinoderm, a feather star, out for a swim. (via Owl Mirror)

I was reading this account of an encounter between three cuttlefish — a consort male escorting a female, who is challenged by an intruder — and the story was weirdly familiar. The intruder’s pupil dilation and arm extension began the first of three brief bouts over the course of about four minutes, each with escalating…