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The black-chinned hummingbird (Archilochus alexandri) is the bird species known to have the smallest genome among birds, which is only 0.91 Gb long.The genomic evolution of birds has come under scrutiny since the advent of rapid DNA sequencing, as birds have the smallest genomes of the amniotes despite acquiring highly derived phenotypic traits.
In phylogenetics, a plesiomorphy ("near form") and symplesiomorphy are synonyms for an ancestral character shared by all members of a clade, which does not distinguish the clade from other clades. Plesiomorphy, symplesiomorphy, apomorphy, and synapomorphy all mean a trait shared between species because they share an ancestral species.
Accipitridae is a family of birds of prey which includes hawks, eagles, kites, harriers, and Old World vultures. These birds have very large powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. Sixteen species have been recorded in Ohio. White-tailed kite, Elanus leucurus (R)
Synapomorphy/homology – a derived trait that is found in some or all terminal groups of a clade, and inherited from a common ancestor, for which it was an autapomorphy (i.e., not present in its immediate ancestor). Underlying synapomorphy – a synapomorphy that has been lost again in many members of the clade. If lost in all but one, it can ...
The bird is also Michigan's state bird of peace. [49] The mourning dove appears as the Carolina turtle-dove on plate 286 of Audubon's Birds of America. [19] References to mourning doves appear frequently in Native American literature. Mourning Dove was the pen name of Christine Quintasket, one of the first published Native American women authors.
Of course you know pigeons, they are a ubiquitous bird in cities throughout the world. They cluster on steps and asphalt and nest under eaves and on signs. They eat trash and poop everywhere.
Attempts to produce genetically modified birds began before 1980. [142] Chickens have been genetically modified for a variety of purposes. This includes studying embryo development, [143] preventing the transmission of bird flu [144] and providing evolutionary insights using reverse engineering to recreate dinosaur-like phenotypes. [145]
Sexual selection in birds concerns how birds have evolved a variety of mating behaviors, with the peacock tail being perhaps the most famous example of sexual selection and the Fisherian runaway. Commonly occurring sexual dimorphisms such as size and color differences are energetically costly attributes that signal competitive breeding ...