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The Phaethontiformes / ˌ f eɪ. ɪ ˈ θ ɒ n t ɪ f ɔːr m iː z / are an order of birds. They contain one extant family, the tropicbirds (Phaethontidae), and one extinct family Prophaethontidae from the early Cenozoic. Several fossil genera have been described, with well-preserved fossils known as early as the Paleocene. [2]
The genus Phaethon was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae. [3] The name is from Ancient Greek phaethōn meaning "sun". [4] The type species was designated as the red-billed tropicbird (Phaethon aethereus) by George Robert Gray in 1840. [5] [6]
Sexually selected traits often evolve to become more pronounced in competitive breeding situations until the trait begins to limit the individual's fitness. Conflicts between an individual fitness and signalling adaptations ensure that sexually selected ornaments such as plumage colouration and courtship behaviour are "honest" traits.
This “crazy, nasty” animal became a cultural phenom after a 2011 YouTube video celebrated its bad attitude. Answer: Honey badger What is the world's most endangered marine mammal?
Pages in category "Phaethontiformes" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. ...
Emus are 6 to 7.5 feet (1.8–2.3 m) in height and weigh 75 to 110 pounds (34–50 kg). [29] They have short wings and the adults have brown feathers. Rheas are 3 to 4.6 feet (91–140 cm) and weigh 33 to 88 pounds (15–40 kg). [29] Their feathers are gray or spotted brown and white. They have large wings but no tail feathers.
The tropicbird family Phaethontidae has since been moved to their order Phaethontiformes. Genetic analysis seems to show that the Pelecaniformes are actually closely related to the Ardeidae and Threskiornithidae. As for the Suliformes, they are distantly related to the current Pelecaniformes. [3] According to Hackett et al.
Anatidae is a large proportion of the 3% of bird species to possess a penis, [5] [6] though they vary significantly in size, shape, and surface elaboration. [7] Most species are adapted for copulation on the water only.