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The 500 line segments defined above together form a shape in the Cartesian plane that resembles a bird with open wings. Looking at the line segments on the wings of the bird causes an optical illusion and may trick the viewer into thinking that the segments are curved lines. Therefore, the shape can also be considered as an optical artwork.
Two pairs of players (mainly Cynthia Darlow and Cris Franco vs. Larry Cedar and Luisa Leschin, except for one episode in which real kids were the contestants; season 1)/two players (seasons 3-4) (played by the cast members) tried to make the smallest/largest five-digit number possible (seasons 1 and 3), smallest/largest pair of fractions in ...
The birds then congregate in massive flocks made up of several different species for migratory purposes. Some birds make use of teamwork while hunting. Predatory birds hunting in pairs have been observed using a "bait and switch" technique, whereby one bird will distract the prey while the other swoops in for the kill.
Music Video – Moose sings about a season, holiday, or concept. Move to the Music – Music videos, commonly from Laurie Berkner or various currently-airing series. In Other Words – A specific word is introduced and explained to the viewer. Show and Tell; Critter Corner – An animal is introduced and facts are explained to the viewer. Field ...
Examining the representation of numerosity in animals is a challenging task, since it is not possible to use language as a medium. Because of this, carefully designed experimental setups are required to differentiate between numerical abilities and other phenomena, such as the Clever Hans phenomenon, memorization of the single objects or perception of object size and time.
Beginning in 1983, some field guides for birds use sonograms to document the calls and songs of birds. [132] The sonogram is objective, unlike descriptive phrases, but proper interpretation requires experience. Sonograms can also be roughly converted back into sound. [133] [134] Bird song is an integral part of bird courtship and is a pre ...
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The series was geared toward preschool children ages 3–5; meanwhile, PBS eventually launched the PBS Kids Go! block in 2004 which was intended for children above the preschool level.) The broadcast of the series ended on December 26, 2021, when it was replaced with reruns of Dinosaur Train to the 7:30 a.m. weekend morning timeslot.