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from article Life forms of plants
Life forms of plants according to C. Raunkiaer. (After P. Dansereau, Biogeography: An Ecological Perspective, Ronald Press, 1957)
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from article Life forms of plants
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from article Echolocation
Echolocation is a physiological tool used by gray bats (Myotis grisescens). (Credit: Amareta Kelly)
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from article Echolocation
Sound spectrograms representing sonar signals of (a) Brazilian or Mexican free-tailed bats (Tadarida brasiliensis), (b) big brown bats (Eptesicus fuscus), (c) Wagner's mustached bats (Pteronotus personatus), and (d) greater horseshoe bats…
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from article Chevrotain
Water chevrotain (Hyemoschus aquaticus). (Photo by Brent Huffman; courtesy of Ultimate Ungulate)
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from article Dinosauria
Titanosaurs (based on Rapetosaurus) in the nesting ground at Auca Mahuevo, Argentina. (Credit: Mark Hallett)
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from article Dinosauria
Partly excavated dinosaur fossils. (Credit: Bert Beekmans/Getty Images)
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from article Dinosauria
Simplified phylogenetic tree of the archosaurian reptiles. (Copyright © McGraw-Hill Education)
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from article Dinosauria
Relationships of the ornithischian dinosaurs. (Credit: Modified from an original diagram by P. C. Sereno)
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from article Dinosauria
Skull of Heterodontosaurus, showing typical ornithischian features. (Copyright © McGraw-Hill Education)
