fyeah-seacreatures:

The bottom-dwelling, jelly-bodied nudibranch might seem an unlikely canvas for Mother Nature to express her wildest indulgences of color and form. But these shell-less mollusks, part of the sea slug family, bear some of the most fascinating shapes, sumptuous hues, and intricate patterns of any animal on Earth.
sixpenceee:

Kinesin is a protein that moves things around the cell. That filament is a protein strand that gives the cell structure. That vesicle is a big blob full of cellular product that the cell wants to transport somewhere else. It is driven by ATP hydrolysis. (Source) (Video)
kestrelsansjesses:

I’m sorry, Scotland. 
edwardspoonhands:

leander-ligo:

lordthundercox:

Yes, it does.

Guys get morning wood because our bladders fill up during the night and begin to press against our prostate, causing arousal. Our dicks don’t just feel the sun coming up and think “My time has come”

Shhhhh…
…boner wave…