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The animal moves up to 2 metres (6.5 ft) at a time by rolling 20–40 times, with speeds of around 72 revolutions per minute. That is 1.5 body lengths per second (3.5 cm/s or 1.4 in/s). Researchers estimate that the stomatopod acts as a true wheel around 40% of the time during this series of rolls.
A wheeled buffalo figurine—probably a children's toy—from Magna Graecia in archaic Greece [1]. Several organisms are capable of rolling locomotion. However, true wheels and propellers—despite their utility in human vehicles—do not play a significant role in the movement of living things (with the exception of the corkscrew-like flagella of many prokaryotes).
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Fitzgerald is a veterinarian at Alameda East Veterinary Hospital, where the Animal Planet television series Emergency Vets and its follow-up E-Vet Interns were filmed. For the past 25 years, he has been an assistant professor adjunct at the University of Denver, where he teaches a course called "Perspectives in Veterinary Medicine".
A 1956 Scrooge McDuck comic, Land Beneath the Ground!, by Carl Barks, introduced Terries and Fermies (a play on the phrase terra firma), creatures who move from place to place by rolling. The Terries and Fermies have made a sport of their rolling abilities, causing earthquakes in the process. [11] [12]
The hospital is also involved in screening of animals, and zookeepers for diseases, and vaccination. [102] In July 2013, an ambulance facility was established for transporting animals. [ 103 ] The zoo personnel are subject to various training activities to take care of animal handling. [ 104 ]
Caecosphaeroma burgundum: two of three pillbugs have curled themselves into "pills". Volvation (from Latin volvere "roll", and the suffix -(a)tion; sometimes called enrolment or conglobation), is a defensive behavior in certain animals, in which the animal rolls its own body into a ball, presenting only the hardest parts of its integument (the animal's "armor"), or its spines to predators.
The word animal comes from the Latin noun animal of the same meaning, which is itself derived from Latin animalis 'having breath or soul'. [6] The biological definition includes all members of the kingdom Animalia. [7] In colloquial usage, the term animal is often used to refer only to nonhuman animals.