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Dynatoaetus is an extinct genus of large bird of prey from the Pleistocene of Australia.It is among the largest known raptors of the region, second only to the Haast's eagle of New Zealand, with estimates suggesting a weight of up to 12 kg (26 lb).
The largest honeyeater, perhaps the most diverse Australasian bird family, is the crow honeyeater (Gymnomyza aubryana), at up to 290 g (10 oz) [33] and 30 cm (12 in). The largest of the "true finches" is the collared grosbeak (Mycerobas affinis) of central and south Asia at up to 23 cm (9.1 in) and 80 g (2.8 oz). [116]
Utahraptor was one of, if not the largest and heaviest of all dromaeosaurids, with the largest assigned specimen BYUVP 15465 having a femoral length of 56.5–60 cm (22.2–23.6 in). [8] [9] Utahraptor is estimated to have reached 6–7 metres (20–23 ft) in length and somewhat less than 500 kg (1,100 lb), comparable in weight to a polar bear.
Velociraptor (/ v ə ˌ l ɒ s ɪ ˈ r æ p t ər, v ə ˈ l ɒ s ɪ r æ p t ər /; [1] lit. ' swift thief ') is a genus of small dromaeosaurid dinosaurs that lived in Asia during the Late Cretaceous epoch, about 75 million to 71 million years ago.
The fossil remains of this raptor, scientifically known as Murusraptor barrosaensis, were discovered in 2000. It took University of Alberta paleontologist Philip Currie and his team until recently ...
Steller's sea eagle is the largest bird in the genus Haliaeetus and is one of the largest raptors overall. Females vary in weight from 6.2 to 9.5 kg (14 to 21 lb), while males are rather lighter with a weight range of 4.9 to 6.8 kg (11 to 15 lb).
The visual acuity of some large raptors such as eagles and Old World vultures are the highest known among vertebrates; the wedge-tailed eagle has twice the visual acuity of a typical human and six times that of the common ostrich, the vertebrate with the largest eyes. [41]
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