Coconut Octopus

 Amphioctopus marginatus, also known as the "coconut octopus" or "veined octopus",
 is a medium-sized cephalopod belonging to the genus Amphioctopus. It is found in
tropical waters of the western Pacific Ocean. It commonly preys upon shrimp, crabs,
and clams, and displays unusual behaviour, including bipedal walking and gathering
and using coconut shells and seashells for shelter. Source: Wikipedia

The main body of the octopus is typically around 8 centimeters (3 in) in size, and, with
 arms, approximately 15 centimeters (6 in) long. In this amazing capture by photographer
 Mario Neumann, the contrast of the white suckers to the rest of the octopus and sea
floor makes it look like some kind of alien spaceship.

Short Sex-Filled Life of an Australian Dumpling Squid

 "This promiscuous species of squid pays a dear price for an insatiable sex-drive. After three hours of lovemaking, southern dumpling squid are so exhausted that their ability to avoid predators and forage for food is sorely reduced. An ability to blend into their surroundings helps them survive this post-coital lapse - but only to some extent.

However, their methods aren't always effective. Most dumpling squid only manage to survive for less than a year, which the researchers believe might be a direct result of their risky, sex-filled lifestyle."

 Zoologist Amanda Franklin led the study published in Biology Letters (DOI: 10.1098/rsbl.2012.0556).

Stop learning about cephalopods? Nautilus I have to!

With a perfect snail like shell and most octopus characteristics, this curious creature is considered the lost link between cephalopods (squids, octopus) and the rest of the mollusks. A living fossile which has survived without many changes for hundreds of millions of years.

Nautilus are predators. They dig in sand near coral reefs, looking for shrimps, crabs and small fish to feed. Their tentacles are tiny and without suckers, and they don’t ave good eyes. But in compensation, they have up to 90 tentacles with a powerful grip and a very sharp sense of smell.