Why are so many animals endangered? | AMNH An animal is called endangered when there are so few of its kind left that it is in danger of becoming extinct — disappearing from the world forever There are many reasons that animals and plants can become endangered or die out altogether Since Earth began 4 5 billion years ago, it has been continually changing Most often, this change is
List of birds by flight speed - Wikipedia This is a list of the fastest flying birds in the world A bird's velocity is necessarily variable; a hunting bird will reach much greater speeds while diving to catch prey than when flying horizontally The bird that can achieve the greatest airspeed is the peregrine falcon (Falco peregrinus), able to exceed 320 km h (200 mph) in its dives
Angiosperm - New World Encyclopedia Over 250,000 species of flowering plants have been described, within about 460 families The most diverse families of flowering plants, in order of number of species, are: Orchidaceae (Orchid family): 25,000 or more species; Asteraceae or Compositae (Daisy family): 20,000 species; Fabaceae or Leguminosae (Pea family): 17,000
Doug Tallamy’s Impact: Caterpillars and Bird Diversity Considering the high energy requirements of nestlings, the parent birds continuously forage for caterpillars to feed their hungry offspring To give you an idea, studies have found that a single pair of Carolina Chickadees, a common songbird species, can feed their nestlings with approximately 6,000 to 9,000 caterpillars during a breeding season