OLogy Cards > locomotion

locomotion

Animals swim, walk, crawl, slither, squirm, and even fly through the air. They can catch free rides by attaching themselves to other creatures, or by traveling on drifting logs. There are almost as many different forms of locomotion, or ways of moving, as there are animals in the sea. Animals need to travel to hunt for prey, escape from predators, migrate for the season, or search for a mate.

Stats

Stumper

Humans are bipedal, which means they walk on two legs. Animals that walk on four legs are:

tripedal

quadrupedal

octopedal

Correct!

Most mammals and reptiles on the planet are quadrupeds, or walk on four legs. Humans are the only mammals that walk completely upright.

Stumper

Birds' bones are specially adapted for flying because they are:

filled with helium.

hollow inside.

made out of paper.

Correct!

Because it takes a lot of energy to fly, birds have thin, light bones that are hollow inside. They also have fewer bones than most mammals and reptiles.

Fact or Fiction

If a shark stops swimming, it will sink.

Fact

Fiction

Fact

Sharks have to keep moving. Unlike most fish, sharks don't have swim bladders, the flexible air-filled cavities in fishes' bodies that help them stay afloat.

Fact or Fiction

Animals that do not have legs cannot move.

Fact

Fiction

Snakes have muscular bodies that they use to thrust forward. Some worms use tiny microscopic hairs on their bodies to move from place to place.

Image credits: cheetah, Cheetah Conservation Fund jellyfish, NOAA, Kevin Raskoff hummingbird, AMNH Library PK392.

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