Some birds, especially corvids and parrots, are among the most intelligent animal species ; a number of bird species have been observed manufacturing and using tools, and many social species exhibit cultural transmission of knowledge across generations.

Some extinct members of the crocodilian line, a sister group to the dinosaurs and birds, also evolved bipedal forms-a crocodile relative from the triassic, Effigia okeeffeae, is believed to be bipedal.

Some birds nest there, like puffins, sea turtles and rockhopper penguins.

Some birds grew larger than the average human.

Some points of interest are the Tropical House, the Cactus House, the Canary House and the Orchid House, which hosts one of the world's biggest collection of orchids, and free-flying birds and butterflies.

Some children would help with crushing grain or cleaning birds.

Some features that are confined to one sex only of a particular species can be explained by selection exercised by the other sex in the choice of a mate, for example, the extravagant plumage of some male birds.

Some of these similarities include that, in parallel to Skaði and Njörðr in Skáldskaparmál, Hadingus is chosen by his wife Regnhild after selecting him from other men at a banquet by his lower legs, and, in parallel to Skaði and Njörðr in Gylfaginning, Hadingus complains in verse of his displeasure at his life away from the sea and how he is disturbed by the howls of wolves, while his wife Regnhild complains of life at the shore and states her annoyance at the screeching sea birds.

Some birds, particularly finches, also eat the seeds.

Some of the material in that foreword, such as the self-destruct mynah birds ( taught to say " Here, kitty-kitty-kitty!

Some birds, notably the Spotted Nutcracker, Clark's Nutcracker and Pinyon Jay, are of importance in distributing pine seeds to new areas.

Some species, unusual for birds, perch along a branch, rather than across it.

Some otters are expert at opening shellfish, and others will feed on available small mammals or birds.

Some of the birds that depend on these marshes include: Wilson's phalarope, red-necked phalarope, American avocet, black-necked stilt, marbled godwit, Snowy Plover, western sandpiper, long-billed dowitcher, tundra swan, American white pelican, white-faced ibis, California gull, eared grebe, peregrine falcon, bald eagle, plus large populations of various ducks and geese.

* Feduccia, J. Alan ( 1970 ): Some birds of prey from the Upper Pliocene of Kansas.

Some birds also use claws for defensive purposes.

Some stories have involved the birds leaving Gyro's thinking cap, resulting in the cap becoming ineffective.

Some birds – e. g. the Lesser Potoo ( Nyctibius griseus ) – nest in Cecropia trees.

Some of the larger species hunt birds, lizards, frogs or even fish.

Some birds will build nests in trees, some ( such as vultures, eagles, and many seabirds like Kittiwakes ) will build them on rocky ledges, and others nest on the ground or in burrows.

Some of the topics he addressed in the account were those of religion, justice, kingship, agriculture, slavery, birds, vegetables, bathing, clothing, tools, draft animals, and commerce.

Some water birds, e. g. oystercatchers, feed on shellfish.

Some birds range over a number of habitats, but many are found in only one environment.

Some 140 species of birds have been recorded in the Gawler Ranges, which has been identified by BirdLife International as an Important Bird Area ( IBA ) because it supports populations of the vulnerable Malleefowl, the Gawler Ranges subspecies of the Short-tailed Grasswren, Rufous Treecreeper, Blue-breasted Fairy-wren, Purple-gaped Honeyeater and Western Yellow Robin.

Some of the common birds in the park include the Eastern Spinebill, Green Rosella, Forest Raven and several honeyeaters.

Some of the larger commercial BBSes, such as MaxMegabyte and ExecPC BBS, evolved into Internet Service Providers.

Some writers have suggested that they may have evolved as a visual signal of sexual maturity and fertility.

Some hypothesize that large quantities of wood were buried during this period because animals and decomposing bacteria had not yet evolved that could effectively digest the new lignin.

Some believe the dolmens evolved from a simpler cist burial method.

Some of these ultimately evolved into medieval universities and forebears of many of Europe's modern universities.

Some extinct marine reptiles, such as ichthyosaurs, evolved to be viviparous and had no requirement to return to land.

Some authors saw the latter as languages which had not yet completely evolved to full Bantu status, whereas others regarded them as languages which had partly lost original features still found in Bantu.

Some plants have evolved mechanisms to increase the concentration in the leaves under these conditions.

Some groups of plants developed nectar and large sticky pollen, while insects evolved more specialized morphologies to access and collect these rich food sources.

Some biologists, anthropologists and evolutionary psychologists believe this in-group / out-group discrimination has evolved because it enhances group survival.

Some butterflies have evolved symbiotic and parasitic relationships with social insects such as ants.

Some species have evolved dark wingbases to help in gathering more heat and this is especially evident in alpine forms.

Some conventions have also evolved about very common words:

Some chess puzzles may derive from studies which were intended to help a student of the game learn how to seal a victory, but have since evolved into an entirely separate art.

Some other animals have evolved their own unique prints, especially those whose lifestyle involves climbing or grasping wet objects ; these include many primates, such as gorillas and chimpanzees, Australian koalas and aquatic mammal species such as the North American fisher.

Some populations of Z. m. mexicana display Vavilovian mimicry within cultivated maize fields, having evolved a maize-like form as a result of the farmers ' selective weeding pressure.

Some of the system's technicians estimate that the current system could have evolved to manage the new countries without an overall recasting.

Some have evolved multiple small sporangiola that contain few sporangiospores.

Some of the species in the freshwater mussel family, Unionidae, commonly known as pocketbook mussels, have evolved an unusual reproductive strategy.

Some bands of Cheyenne, including the Dog Soldiers, a militaristic band of Cheyenne and Lakota that had evolved beginning in the 1830s, were angry at the chiefs who had signed the treaty.

Some comparative studies of human and higher primate digestive tracts do suggest that humans have evolved to obtain greater amounts of calories from high-quality sources such as animal foods, allowing them to shrink the size of the gastrointestinal tract, relative to body mass, and to increase the brain mass instead.

Some species, such as Eulophia petersii, have adapted to very arid environments and are among the few orchids to have truly evolved desert living species.

Some pleonastic phrases, when used in professional or scholarly writing, may reflect a standardized usage that has evolved or a meaning familiar to specialists but not necessarily to those outside that discipline.