Pharyngula

Archives for August, 2017

Friday Cephalopod: Undead Squid Penis

First, a little background: When squid mate, a male transfers its sperm to a female enclosed in complex structures called spermatophores. These are accumulated in the spermatophoric sac, a storage organ inside the mantle cavity, before ejaculation through the penis. Squid that spawn in shelf waters and epipelagic waters of the open ocean usually have…

Friday Cephalopod: Squink

If you’ve ever wondered what squid ink is made of, here’s your answer: Generally, cephalopod ink includes melanin, enzymes related to melanin production, catecholamines, peptidoglycans, free amino acids and metals. But mostly melanin. And mucus.

The sequel is going to go a bit dark: this is a deep ocean sponge. It’s dark and ominous, and it’s also carnivorous, with sticky spines for capturing and killing passing animals. I think that thing has been waiting for me in a lot of my nightmares.

Time to forage.