A physics lesson: why cats land on their feet (usually).
Infographic: Here’s every Avenger that Marvel ever invented.
25 advertisements by Dr. Seuss before he was Dr. Seuss. And here are his WWII editorial cartoons.
Stressed men like bigger butts.
Freeing a moose from a swing set. Also in the animal-rescue category, bringing a drowned turtle back from the dead with mouth-to-mouth resuscitation.