did-you-kno:

Polar bears are so well insulated by inches of blubber and fur that their heat signature is nearly invisible through infrared photography. Source

santanser:

Pos va a ser eso…

Similar to the idea of Where’s Waldo, a Tumblr page called Subtle Dildo is posting random, ordinary pictures with a special hidden object. Can you find the dildo?

scienceyoucanlove:

Beautiful dissection of the arterial blood supply of the brain from 1934!By Martin Woerdeman (1892-1990)
from Daily Anatomy

scienceyoucanlove:

Beautiful dissection of the arterial blood supply of the brain from 1934!

By Martin Woerdeman (1892-1990)

from Daily Anatomy

(vía siteportasbientedoyuncaramelo)