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Tradeoffs for locomotion in air and water. Penguins swim by "flying" beneath the surface of the water. Flying fish use their pectoral fins to glide above the water's surface. Certain species of fish and birds are able to locomote in both air and water, two fluid media with very different properties. A fluid is a particular phase of matter that ...
Fish locomotion is the various types of animal locomotion used by fish, principally by swimming. This is achieved in different groups of fish by a variety of mechanisms of propulsion, most often by wave-like lateral flexions of the fish's body and tail in the water, and in various specialised fish by motions of the fins.
A wing-clipped Meyer's parrot perching on a drawer handle. While clipping is endorsed by some avian veterinarians, others oppose it. [7]By restricting flight, wing clipping may help prevent indoor birds from risking injury from ceiling fans or flying into large windows, but no evidence shows that clipped birds are safer than full-winged ones, only that clipped birds are subject to different ...
Crows in a trap on a farm in England. Almost all traps involve the use of food, water or decoys to attract birds within range and a mechanism for restricting the movement, injuring or killing birds that come into range. Food, water, decoy birds and call playback may be used to bring birds to the trap. The use of chemical sprays on crops or food ...
Tool use by non-humans is a phenomenon in which a non-human animal uses any kind of tool in order to achieve a goal such as acquiring food and water, grooming, combat, defence, communication, recreation or construction. Originally thought to be a skill possessed only by humans, some tool use requires a sophisticated level of cognition.
The large, colorful blue jay is a common sight for backyard bird watchers, and its range makes it a regular fixture in backyards and parks all over the entire eastern half the the United States.
Cormorant fishing is a traditional fishing technique in which fishermen use trained cormorants to catch fish in rivers. Historically, cormorant fishing has taken place in China and Japan, [1] as well as Greece, North Macedonia, and briefly, England and France. Sometimes known as "duck fishing," it was attested as a method used by the ancient ...
Loaded 0%. No. 17 Notre Dame righted itself with a 66–7 blowout win over Purdue one week after being upset by Northern Illinois. However, the Fighting Irish suffered some costly injuries in the ...