Search results
Results from the WOW.Com Content Network
In humans, the vermiform appendix is sometimes called a vestigial structure as it has lost much of its ancestral digestive function.. Vestigiality is the retention, during the process of evolution, of genetically determined structures or attributes that have lost some or all of the ancestral function in a given species. [1]
For ground-feeding birds, a cursorial lifestyle is more economical and allows for easier access to dietary requirements. [7] Flying birds have different wing and feather structures that make flying easier, while flightless birds' wing structures are well adapted to their environment and activities, such as diving in the ocean. [21]
Archaeopteryx (/ ˌ ɑːr k iː ˈ ɒ p t ər ɪ k s /; lit. ' old-wing '), sometimes referred to by its German name, "Urvogel" (lit. Primeval Bird) is a genus of bird-like dinosaurs.The name derives from the ancient Greek ἀρχαῖος (archaīos), meaning "ancient", and πτέρυξ (ptéryx), meaning "feather" or "wing".
This page was last edited on 26 September 2020, at 23:19 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Birds evolved from certain feathered theropod dinosaurs, and there is no real dividing line between birds and non-avian dinosaurs except that some of the former survived the Cretaceous–Paleogene extinction event while the latter did not. For the purposes of this article, a 'bird' is considered to be any member of the clade Avialae. [1]
After near-extinction, the feathery birds have rebounded in a big way. Now, they're overrunning this city and others. Make way for turkeys: The Thanksgiving bird infiltrating city centers
The knit jacket that shoppers say is better than 'JCrew cardigans' is on sale for $34. See all deals. In Other News. Finance. Finance. Reuters.
With its long decurved bill and brown body, the curlew resembles the kiwi. So when the first Polynesian settlers arrived, they may have applied the word kiwi to the newfound bird. [11] The bird's name is spelled with a lower-case k and, being a word of Māori origin, normally stays as kiwi when pluralised. [12] [failed verification]