Suchergebnisse
Suchergebnisse:
5. Mai 2024 · Birds are a group of warm-blooded vertebrates constituting the class Aves ( / ˈeɪviːz / ), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
Vor 3 Tagen · Hummingbirds are the smallest mature birds, measuring 7.5–13 cm (3–5 in) in length. The smallest is the 5 cm (2.0 in) bee hummingbird, which weighs less than 2.0 g (0.07 oz), and the largest is the 23 cm (9 in) giant hummingbird, weighing 18–24 grams (0.63–0.85 oz).
9. Mai 2024 · Although the origin of birds has historically been a contentious topic within evolutionary biology, only a few scientists still dispute the dinosaurian origin of birds, suggesting descent from other types of archosaurian reptiles.
Vor 6 Tagen · The spangled cotinga ( Cotinga cayana) is a tropical bird that lives in the forests and jungles of northern South America, including in the Amazon rainforest in Brazil. Males have striking light ...
21. Apr. 2024 · Eagle, any of many large, heavy-beaked, big-footed birds of prey in the family Accipitridae (order Accipitriformes). An eagle may resemble a vulture in build and flight characteristics, but its head is fully feathered (often crested), and its strong feet are equipped with great curved talons.
Vor einem Tag · Learn Birds are intricate creatures – they live most of their lives in the air, and with over 2,000 different species just in North America, there are always new aspects of their lives we as bird lovers, can discover. There is so much to discover about these avian creatures: their resting habits and breeding patterns, anatomy ...
Vor 5 Tagen · Bird Lens. Images of birds for science & public; Western Palaearctic & the World
