Ostriches are a family, Struthionidae, of flightless birds. Ostriches first appeared during the Miocene epoch, though various Paleocene, Eocene and Oligocene fossils may also belong to the family. Ostriches are classified in the ratite group of birds, all extant species of which are flightless, including the kiwis, emus, and rheas. Traditionally the order Struthioniformes contained all the ratites. However, recent genetic analysis has found that the group is not monophyletic, as it is paraphyletic with respect to the tinamous, so the ostriches are classified as the only members of the order. There are two extant species of ostrich, the common ostrich and Somali ostrich, both in the genus Struthio, which also contains several species known from Holocene fossils such as the Asian ostrich. The common ostrich is the largest living bird species, and other ostriches are among the largest bird species ever. — Wikipedia
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- Ostrich-like dinosaurs found in Mississippi are...on October 19, 2022 at 7:00 pm
Ostrich-like dinosaurs called ornithomimosaurs grew to enormous sizes in ancient eastern North America, according to a study published October 19, 2022, in the open-access journal PLOS ONE by Chinzorig Tsogtbaatar of the North Carolina Museum of Natural Sciences and colleagues.
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The evolutionary pros and cons of group living vary for males and females, according to a study of ostriches reported today in eLife.
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If you live in Europe, you can find almost any statistic you like about the birds in the environment. How many there are of a species, where you find them, whether their population is increasing or decreasing. In some countries like the UK there are comprehensive surveys going back 60 years and they have mapped and counted every single bird species three times already.
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Climate change is causing a mass extinction the likes of which has not been seen in recorded history. For birds, this biodiversity loss has implications beyond just species loss. In research publishing in the journal Current Biology on July 21, researchers use statistical modeling to predict that extinction will decrease morphological diversity among remaining birds at a rate greater than species loss alone. The team's results reveal which birds are at risk and which regions are most […]
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Tree of Life
Prokaryote Archaea, Bacteria
Eukaryote Protist, Fungi, Algae, Protozoa (Tardigrade)
Plant Flower, Tree
Cnidaria Coral, Jellyfish
Cephalopod Cuttlefish, Octopus
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Fish Seahorse, Ray, Shark
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Cetacean Whale, Dolphin
Primate Monkey, Chimpanzee, Human