Violet sea snail (janthina janthina) out of its shell, with goose barnacles

white-speckled seahare (Aplysia)

A harmless Port Jackson shark in Sydney, Australia

Two young gorillas enjoy each other...until a toddler clit-blocks!

Kraken? The giant cuttlefish

Eastern Blue Groper fish and a school of yellowtail scad

Lips moving so quickly, you can't see what's happening.

Spider becomes visible due to motion

Spider camouflage

Measure your mind's limit for tracking one target

tenzing and contributorship

A very active Maori octopus (Macroctopus maorum)

Eastern water dragons fight

A worm-eating carnivorous snail that's too big to fully fit into its shell.

New Zealand ferry and water color

echidna winks and runs

Alex Holcombe on Contributorship. AFC Lab Talk Series

Simulation of the retinal image

Koalas usually look like lumps.

VSS2021 Introduction to Open Science

Asteroids, the 1979 video game by Atari.

A "seal spa" (bottom center) where the seals are frolicking on Tasman Island.

Post hoc ergo propter hoc.

red-bellied black snake (venomous) at Warriewood Wetland

barber pole, but no illusion

Feel your brain follow two moving objects. What is its maximum speed?

Measure your mind's speed limit for tracking two targets

Measure your mind's speed limit for tracking one target

Scientist meets Publisher

ascent through DKL color space

Ascent through DKL color space

Perceptual speed limit on judging relative tilt

baby falls when room moves

Brown Owl remarkable head stability