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Dynatoaetus
''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 . Although most closely related to modern vultures, it shows clear adaptations towards an active predatory lifestyle in the form of robust, powerful talons. This may either hint at it retaining these ancestral features from the closely related Circaetinae, serpent eagles or show that it convergent evolution, convergently evolved these features as it took on a similar lifestyle. Due to their size and robust bones, it is thought that ''Dynatoaetus'' would have been capable of taking large prey items like kangaroos, giant wombats and flightless birds. There are two species within the genus, the type species ''Dynatoaetus gaffae'' and the somewhat smaller ''Dynatoaetus pachyosteus'', both of which inhabited the same part of Australia at the same ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accipitridae
The Accipitridae () is one of the four families within the order Accipitriformes, and is a family of small to large birds of prey with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects to medium-sized mammals, with a number feeding on carrion and a few feeding on fruit. The Accipitridae have a cosmopolitan distribution, being found on all the world's continents (except Antarctica) and a number of oceanic island groups. Some species are migratory. The family contains 256 species which are divided into 12 subfamilies and 75 genera. Many well-known birds such as hawks, eagles, kites, harriers and Old World vultures are included in this group. The osprey is usually placed in a separate family ( Pandionidae), as is the secretary bird ( Sagittariidae), and the New World vultures are also usually now regarded as a separate family or order. Karyotype data indicate the accipitrids analysed are indeed a distinct monophyletic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
