Videos

Thoughts, in a brain, captured on video for the first time

Thoughts, in a brain, captured on video for the first time.

The two bright spots swimming around in the video below are both fluorescent paramecia — single-celled organisms, similar to amoeba. One has free range and swims rapidly about, while the other one is confined to the brain of a transparent zebrafish packed in gelatin hungrily measuring its dinner. Only the first paramecium is actually real — the second is pure muse, the ethereal scintillation of the first thought ever captured on video.

Walnut the True Measure of a Dinosaur’s Brain

Walnut the True Measure of a Dinosaur’s Brain.

Ampelosaurus had a surprisingly small brain. All fifty feet of the dinosaur – from its pencil-toothed muzzle to the tip of its long tail – was regulated by a mass of tissues about the size of a walnut and a half. That comparison isn’t sloppy shorthand. Ohio University paleontologist Lawrence Witmer actually went to the trouble of comparing the hulking sauropod’s brain to an English walnut to test and confirm this old axiom.