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Where predators are rare, turning more attention to feeding might produce a Darwinian benefit, for example. Most likely, all individuals of a given species have very similar genes guiding very similar developmental processes, but produce different results because the plasticity itself is selected for. Invasion of the birdie snatchers.
Hunting sandhill cranes in Kentucky is a bad idea from a public relations standpoint, considering the growing cadre of birders and nature enthusiasts for whom cranes are a touchstone species. Nationwide, wildlife watchers now outspend hunters 6 to 1. Nationwide, wildlife watchers now outspend hunters 6 to 1.
Even if you don’t live in the summer range of a particular species, you may have opportunities to observe it while it passes through, especailly if you live in an active flyway, like I happen to. Because the ancestor of this species of bird migrated, and the migratory adaptation and all that entails were passed on.
More than 5,000 bird species in the world make some kind of seasonal movement. He gives lots of marvelous examples, such as the Blackpoll warbler, “among the most astonishing and extreme of all migratory birds.”. As a test of endurance, as a physical ordeal, it’s both miraculous and monstrous.” Eighty hours of flying.
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