Species in the Coleoptera have a hard exoskeleton, particularly on their forewings ( elytra, singular elytron ).

Species have functional traits that are uniquely adapted to the ecological niche.

The decisions of the Supreme Court in cases such as Calvert Cliffs Coordinating Committee v. U. S. Atomic Energy Commission ( broadly reading the procedural requirements of the National Environmental Policy Act ), Tennessee Valley Authority v. Hill ( broadly reading the Endangered Species Act ), and, much more recently, Massachusetts v. EPA ( requiring EPA to reconsider regulation of greenhouse gases under the Clean Air Act ) have had policy impacts far beyond the facts of the particular case.

In The Origin of Species, he wrote, " If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down.

Studies of Charles Darwin's notebooks have shown that Darwin arrived separately at the idea of natural selection which he set out in his 1859 book On the Origin of Species, but it has been speculated that he may have had some half-forgotten memory from his time as a student in Edinburgh of ideas of selection in nature as set out by Hutton, and by William Charles Wells and Patrick Matthew who had both been associated with the city before publishing their ideas on the topic early in the 19th century.

Species in this order typically have the following characteristics, although there are exceptions to all of them:

Species ( often dubious ones now known to be based on sexual variation or juvenile characters ) have been reclassified a number of times, and several sub-genera have in the 1970s been erected by Halsey Wilkinson Miller to hold them in various combinations, further confusing the taxonomy ( subgenera include Longicepia, Occidentalia, and Geosternbergia ).

It is often incorrectly assumed that he insisted that the rate of change must be constant, or nearly so, but even the first edition of On the Origin of Species states that " Species of different genera and classes have not changed at the same rate, or in the same degree.

In the fourth edition ( 1866 ) of On the Origin of Species Darwin wrote that " the periods during which species have undergone modification, though long as measured in years, have probably been short in comparison with the periods during which they retain the same form.

However, these conclusions have been disputed, and Mammal Species of the World currently lists them both as subspecies of the gray wolf.

Stephen Hawking and Christopher Langan argue that the egg came before the chicken, though the real importance of the question has faded since Darwin's On the Origin of Species and the accompanying Theory of Evolution, under which the egg must have come first, assuming the question intended the egg to mean an egg in general or an egg that hatches into a chicken.

Species of note in the open enclosures include two subspecies of giraffe, rhinos ( the park has the world's most successful breeding program for Southern white rhinos and is the only New World zoo to have Northern white rhinos ), gaur, vultures, markhor, and many species of antelope, gazelle, and deer.

In On the Origin of Species ( 1859 ), Charles Darwin wrote " Although I do not know of any thoroughly well-authenticated cases of perfectly fertile hybrid animals, I have some reason to believe that the hybrids from Cervulus vaginalis and Reevesii [...] are perfectly fertile.

Species often have different mating or courtship patterns or behaviors, the breeding seasons may be distinct and even if mating does occur antigenic reactions to the sperm of other species prevent fertilization or embryo development.

:* Species cumulonimbus capillatus ( Cb cap ): Thunderclouds with very high tops that have become fibrous due to the presence of ice crystals ( C < sub > L </ sub > 9 ).

Species listed under this status by the International Union for Conservation of Nature ( IUCN ) are not known to have any living specimens in the wild, and are maintained only in zoos or other artificial environments.

Species in the genera Allium, Hippeastrum, Narcissus, and Tulipa all have tunicate bulbs.

Species in the Geranium genus have a distinctive mechanism for seed dispersal.

Species of this suborder have antennae but they cannot readily be seen because they lie in grooves in the side of the head.

Species of both genera are native to the area where Greek language and culture originated, though as the word " kedros " does not seem to be derived from any of the languages of the Middle East, it has been suggested the word may originally have applied to Greek species of juniper and was later adopted for species now classified in the genus Cedrus because of the similarity of their aromatic woods.

CITES ( the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention ) is a multilateral treaty, drafted as a result of a resolution adopted in 1963 at a meeting of members of the International Union for Conservation of Nature ( IUCN ).

The northwest Pacific population is also listed as endangered by the U. S. government ’ s National Marine Fisheries Service under the U. S. Endangered Species Act.

*** Species C. barabensis, including " C. pseudogriseus " and " C. obscurus "— Chinese striped hamster, also called Chinese hamster ; striped dwarf hamster

*** Species C. griseus — Chinese ( dwarf ) hamster, also called rat hamster

*** Species C. cricetus — European hamster, also called common hamster or black-bellied field hamster

*** Species M. brandti — Turkish hamster, also called Brandt's hamster ; Azerbaijani hamster

*** Species T. triton — greater long-tailed hamster, also called Korean hamster

Charles Darwin quoted Audubon three times in On the Origin of Species and also in later works.

Species of sea cucumbers with specialized care for their offspring may also nurse the young in body cavities or on their surfaces.

The United States also passed new legislation such as the Clean Water Act, the Clean Air Act, the Endangered Species Act, and the National Environmental Policy Act-the foundations for current environmental standards.

* 1937 — In Genetics and the Origin of Species, Theodosius Dobzhansky applies the chromosome theory and population genetics to natural populations in the first mature work of neo-Darwinism, also called the modern synthesis, a term coined by Julian Huxley.

In recent years, Steller sea lions have been known to enter the Columbia River estuary and feed on white sturgeon, several salmon species and rainbow trout, some of which are also listed under the U. S. Endangered Species Act.

Species in the genus Amomum are also used in traditional Indian medicine.

Species of Parthenocissus ( Vitaceae ) produce twining tendrils that are modified stems, but which also produce adhesive pads at the end that attach themselves quite strongly to the support.

Holy Communion is always received in both Species ( the Body and the Blood of Christ ) not only by the clergy but also by the faithful.

Species in the related genus Schizophragma, also in Hydrangeaceae, are also often known as hydrangeas.

Species such as fan palms, kalumbaru gums and paperbarks are also found along the watercourses.

Charles Darwin ( 1859 ) also produced one of the first illustrations and crucially popularized the notion of an evolutionary " tree " in his seminal book The Origin of Species.

The term is also applied to the film industry: one such case lies in the career of actress Natasha Henstridge, who has yet to match the success of the 1995 film, Species.

With a comprehensive work on Dialectic ( τῆς περὶ τὸ διαλέγεσθαι πραγματείας βιϐλία ιδ ΄) there were also separate treatises On Knowledge, On Knowledgibility ( περὶ ἐπιστήμης α ΄, περὶ ἐπιστημοσύνης α ΄), On Divisions ( διαιρέσεις η ΄), On Genera and Species ( περὶ γενῶν καὶ εἰδῶν α ΄), On Ideas ( περὶ ἰδεῶν ), On the Opposite ( περὶ τοῦ ἐναντίου ), and others, to which probably the work On Mediate Thought ( τῶν περὶ τὴν διάνοιαν η ΄) also belonged.

Species 8472 can also survive the unprotected rigors of normal space, and appears to not need to breathe an atmosphere, or even the organic fluid present in its own realm.

Scortia also collaborated with Dalton Trumbo on the novel The Endangered Species.