Basic Info
Evolutionary
Biology & Body
Lifestyle & Role
Human Interactions
100

Greek for "Head-Foot," this is the name of the group including octopuses and squid.

Cephalopod

100

Cephalopods first evolved approximately this many million years ago:_______

500 Million

100

Cephalopods have this many hearts in total.

Three

100

In the food web, cephalopods play these two major roles.

Predators and Prey

100

This is the most common way humans use cephalopods as a resource.

Food

200

What is the only type of habitat where you can find cephalopods?

marine/ocean

200

This was the first major evolutionary step that allowed them to start swimming.

Siphuncle

200

This is the method of movement they use to push themselves through water.

Jet propulsion

200

This is the term for the final life stage where a cephalopod stops eating and prepares for death.

The Senescent phase

200

This nickname refers to octopuses being highly intelligent neighbors in the ocean.

Smart Neighbors

300

Cephalopods use this body part for eating; it's shaped like a bird's mouth.

A beak 

300

The first cephalopods without these appeared roughly 416 million years ago are?

Shells

300

This part of the body is a sac that sits above the eyes and holds the internal organs.

The mantle

300

Cephalopods help the environment with "Ocean Clean-up" by moving this to the deep sea.

Carbon

300

Human engineers use cephalopods as inspiration for this type of technology.  

Inspiration for Tech" or Soft Robotics

400

This organ is shaped like a donut and wrapped around the esophagus.

The brain

400

As they lost their shells, cephalopods adopted this type of "open ocean" lifestyle what is it?


Pelagic

400

These two hearts are responsible for pumping blood specifically to the gills.

The branchial hearts

400

Most cephalopods have this kind of lifespan, usually ending shortly after they spawn.

A short lifespan

400

Humans study their skin to create this specific type of military technology.

Active camouflage

500

What is the two defense mechanisms that allow a cephalopod to hide or escape. 

Camouflage and Ink

500

Evolution moved neurons into these limbs so they could "think" independently

Arms/tentacles

500

This tooth-covered tongue is used to shred food after the beak breaks it.

A radula

500

Cephalopods produce these two types of hatchlings (one is planktonic, one is larger).

Paralarvae and Juveniles

500

This specialized arm is used by males to transfer sperm, a fact studied by biologists

The hectocotylus