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1938. Type. woodcut. Dimensions. 43.5 cm × 43.9 cm (17.1 in × 17.3 in) Sky and Water I is a woodcut print by the Dutch artist M. C. Escher first printed in June 1938. The basis of this print is a regular division of the plane consisting of birds and fish. Both prints have the horizontal series of these elements —fitting into each other like ...
The three-spined stickleback (Gasterosteus aculeatus) is a fish native to most inland and coastal waters north of 30°N. It has long been a subject of scientific study for many reasons. It shows great morphological variation throughout its range, ideal for questions about evolution and population genetics. Many populations are anadromous (they ...
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 ...
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.
Bird trapping techniques to capture wild birds include a wide range of techniques that have their origins in the hunting of birds for food. While hunting for food does not require birds to be caught alive, some trapping techniques capture birds without harming them and are of use in ornithology research. Wild birds may also be trapped for their ...
The search for cute babies starts around 9 p.m. and can last until as late as 3 a.m. The entire community helps to collect data each year for scientific purposes.
The video is only 45 seconds long, but it's total cuteness overload. The zoo froze large disks of ice and put them into the bobcats' pond. Watch on as they try to figure out how to grab it with ...
Labrus jaculator. Shaw, 1803. The archerfish (also known as spinner fish or archer fish) or Toxotidae are a monotypic family (although some include a second genus) of perciform tropical fish known for their unique predation technique of "shooting down" land-based insects and other small prey with jets of water spit from their specialized mouths.