Dictionary » L » Locomotion




The ability of cells or organisms to move and propel itself from place to place


Locomotion in biology pertains to the various movements of organisms (single-celled or multicellular organisms) to propel themselves from one place to another. In multicellular animals, these movements include walking, running, jumping, crawling, climbing, swimming, flying, galloping, slithering, and so on. The movements may vary depending on the habitat of the animal. For instance, terrestrial animals are capable of terrestrial locomotion since they have special adaptations for it such as feet and strong limbs for running and walking. For limbless animals, such as snakes, they are capable of slithering over a surface. Animals with longer hind limbs enable them to jump high. In an aquatic habitat, animals, such as fish, move using their fins. Single-celled organisms, such as ciliates and flagellates, move using their locomotory organs, cilia and flagella, respectively. Animals, such as tree snails, bats, and leopards that can climb and stay on trees, and move from one tree to another display arboreal locomotion.

Word origin: Latin loco (from a place), locus (place) + motionem (motio), motion (a moving)

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Locomotory Evolution

What is the cause behind the nature, choosing forward directional locomotion to develop in the metazoans (as in bilaterians which is the main cause to cephalisation) over multi-directional movement (a much higher form) which already existed in the radially ...

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by Tista
Tue Dec 30, 2014 7:30 am
Forum: Evolution
Topic: Locomotory Evolution
Replies: 1
Views: 1486

Re: Beneficial mutations vs harmful

... (given the correct environment) when the ''word'' is spelt. You will not be seeing desert-dwelling animals evolve flat, oar-like tails for aquatic locomotion because that would be a neutral or disadvantageous mutation, and it would not aid in the hypothetical species's survival, so it would not ...

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by Coelacanth
Sun Oct 13, 2013 6:08 am
Forum: Evolution
Topic: Beneficial mutations vs harmful
Replies: 12
Views: 15616

Book recommendation for exam

... Protostomes and Deuterostomes, Bilateralia and Radiata; Status of Protista, Parazoa, Onychophora and Hemichordata; Symmetry. 3. Protozoa : Locomotion, nutrition, reproduction; evolution of sex; General features and life history of Paramaecium, Monocystis, Plasmodium, and Leishmania. 4. ...

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by bertstare
Sun Oct 21, 2012 2:19 pm
Forum: Zoology Discussion
Topic: Book recommendation for exam
Replies: 3
Views: 8481

Brain evolution last 40,000 years

... little change. We ran up against an upper limit for brain developement when it wouldn't fit out of a female pelvis that still enabled efficient locomotion. Childbirth remains one of the most dangerous things you can do. Only in the last several dacades has this limit been lifted and then only ...

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Wed May 18, 2011 12:58 am
Forum: Evolution
Topic: Brain evolution last 40,000 years
Replies: 4
Views: 7756

Half Skulls and Forelimb Sets

... and ulna are adapted to the function of each forelimb. 8-how does the orientation of the joint between the humerus, the radius and ulna relate to locomotion?

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by yamana
Tue Mar 23, 2010 5:10 pm
Forum: General Discussion
Topic: Half Skulls and Forelimb Sets
Replies: 0
Views: 3441
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