Kaldari/Wikipedia.

A fascinating story about a rain of jumping spiders, their penchant for hunting laser dots, scientists being brought together on Twitter, and how Jumping Spider eyes are built just like Galilean telescopes – they can see the moon. If you, like me, start following videos from the main one at the site, you’ll find all manner of people who keep these friendly and smart beings as companions.

The Atlantic has the full story.