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.

* 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 games, such as chess, depend almost entirely on player skill.

Some of these games, such as Pyramid from Battlestar Galactica, become real card games as the holder of the intellectual property develops and markets a suitable deck and ruleset for the game, while others, such as " Exploding Snap " from the Harry Potter franchise, lack sufficient descriptions of rules, or depend on cards or other hardware that are infeasible or physically impossible.

Some models in econophysics have shown that when agents are allowed to interact locally in a free market ( i. e. their decisions depend not only on utility and purchasing power, but also on their peers ' decisions ), prices can become unstable and diverge from the equilibrium, often in an abrupt manner.

Some applications of lasers depend on a beam whose output power is constant over time.

Some heroes and villains have no powers at all but depend instead on hand-to-hand combat training or advanced technological equipment.

Some phenomena depend on the fact that light has both wave-like and particle-like properties.

Some agricultural areas depend on an accumulation of snow during winter that will melt gradually in spring, providing water for crop growth.

Some symbiotic relationships are obligate, meaning that both symbionts entirely depend on each other for survival.

Some types of transmitting antenna systems in the VLF, LF, MF and lower SW range depend on a good ground to operate efficiently.

Some countries also require that a naturalized national must renounce any other citizenship that they currently hold, forbidding dual citizenship, but whether this renunciation actually causes loss of the person's original citizenship will again depend on the laws of the countries involved.

Some Greens, such as those in Hawaii, find more effective alliances with more conservative groups ( Blue-Green alliance ) or indigenous peoples-who seek to prevent disruption of traditional ways of life or to save ecological resources they depend on.

Some shorebirds that depend on the resources of Mono Lake include American avocets, killdeer and sandpipers.

Some of the more advanced package management features offer " cascading package removal ", in which all packages that depend on the target package and all packages that only the target package depends on, are also removed.

Some courts and observers opine that cases must be dismissed because this is a constitutional bar, and there is no " case or controversy "; others have rejected the pure constitutional approach and adopted a so-called " prudential " view, where dismissal may depend upon a host of factors, whether the particular person has lost a viable interest in the case, or whether the issue itself survives outside the interests of the particular person, whether the circumstance are likely to recur, etc.

Some other villages, such as Marmarita depend heavily on tourist activity.

Some viruses, with HIV / AIDS among them, depend on proteases in their reproductive cycle.

Some nations have moved to limit foreign ownership of cropland in order to ensure that food is available for local consumption while others have sold food land and depend on the World Food Programme.

Some of them have decreasing elements that depend on the size of the sorted array ( N ).

Some of the proofs of Fermat's little theorem given below depend on two simplifications.

Some depend on the executable storing explicit paths to the libraries.

Some depend on the special status of a person in Judaism ( such as kohanim ), while others apply only to men and others only to women.

Some versions of the Langlands conjectures are vague, or depend on objects such as the Langlands groups, whose existence in unproven, or on the L-group that has several inequivalent definitions.

Some think that sustainable flooring creates safer and healthier buildings and guarantees a future for traditional producers of renewable resources that many communities depend on.

Some Lauraceae species have adapted to demanding conditions in semi-arid climates but they tend to depend on favorable edaphic conditions, for example, perennial aquifers, periodic groundwater flows, or periodically flooded forests in sand that contains hardly any nutrients.