The type species, A. sarcophagus, was apparently restricted in range to the modern-day Canadian province of Alberta, after which the genus is named.

Carotenes are also found in some species of termites, where they apparently have been picked up from the diet of the insects.

Although the early embryos of different species exhibit similarities, Haeckel apparently exaggerated these similarities in support of his Recapitulation theory, sometimes known as the Biogenetic Law or " Ontogeny recapitulates phylogeny ".

This species is part of a clade that contains the kestrel species with black malar stripes, a feature which apparently was not present in the most ancestral kestrels.

The Lesser Kestrel ( F. naumanni ), which much resembles a small Common Kestrel with no black on the upperside except wing and tail tips, is probably not very closely related to the present species, and the American Kestrel ( F. sparverius ) is apparently not a true kestrel at all.

Other prey species of that time evolved more rapidly ( like M. malei, the presumed ancestor of today's Tundra Vole M. oeconomus ), while yet again others seem to have gone entirely extinct without leaving any living descendants – for example Pliomys lenki, which apparently fell victim to the Weichselian glaciation about 100. 000 years ago.

Selenium requirements in plants differ by species, with some plants requiring relatively large amounts, and others apparently requiring none.

Many early accounts which apparently refer to this animal describe the males as being sexually aggressive towards human women and towards females of its own species.

: From time to time a strange vehicle drew near to the place where they stood — such a vehicle as the lady at the window, in spite of a considerable acquaintance with human inventions, had never seen before: a huge, low, omnibus, painted in brilliant colours, and decorated apparently with jingling bells, attached to a species of groove in the pavement, through which it was dragged, with a great deal of rumbling, bouncing, and scratching, by a couple of remarkably small horses.

Most wild cottons are diploid, but a group of five species from America and Pacific islands are tetraploid, apparently due to a single hybridization event around 1. 5 to 2 million years ago.

The way of life of the Cambrian Lobopodia is to a large extent unknown ; some species were apparently carnivorous, feeding on other animals such as, for example, sponges ( Porifera ).

As previously mentioned, males of many Australian species exhibit special structures on the head, which apparently take over certain tasks in transferring sperm to the females.

In those species with opposite adult foliage the leaf pairs, which have been formed opposite at the stem apex, become separated at their bases by unequal elongation of the stem to produce the apparently alternate adult leaves.

The Coscoroba Swan ( Coscoroba coscoroba ) from South America, the only species of its genus, is apparently not a true swan.

However, in spite of this apparently very great difference in form, recent mycological research, both at microscopic and molecular level has shown that sometimes species of open mushrooms are much more closely related to particular species of gasteroid fungi than they are to each other.

This species occurs in Utah today, though apparently no longer on the islands of the Great Salt Lake.

The genus Rubus is a very complex one, particularly the blackberry / dewberry subgenus ( Rubus ), with polyploidy, hybridization, and facultative apomixis apparently all frequently occurring, making species classification of the great variation in the subgenus one of the grand challenges of systematic botany.

Numerous species of owl in the genus Glaucidium and the Northern Hawk-Owl have eye patches on the backs of their heads, apparently to convince other birds they are being watched at all times.

A need to tell and hear stories is essential to the species Homo sapiens – second in necessity apparently after nourishment and before love and shelter.

All of the native Drosophila and Scaptomyza species in Hawaii have apparently descended from a single ancestral species that colonized the islands, probably 20 million years ago.

As these are separated by different behaviour and ecological requirements and have not evolved fertilisation barriers, the two European species can nonetheless produce apparently fertile and viable hybrids.

The Black-capped Donacobius Donacobius atricapillus, which was long considered an aberrant wren or mockingbird is apparently quite closely related, and might possibly be considered the only American species of this family.

The Greek words " ida " ( οίδα: know ) and " idos " ( είδος: species ) have the same root as the word " idea " ( ιδέα ), indicating how the Greek mind moved from the gift of the senses, to the principles beyond the senses.

Amphibians typically have a larval stage that lives in water but there are many different behavioural adaptations that have developed among species to bypass this necessity.

All modern amphibians are included in the subclass Lissamphibia, superorder Salientia, which is usually considered a clade, a group of species that have evolved from a common ancestor.

Lacking these membranes, amphibians require water bodies for reproduction, although some species have developed various strategies for protecting or bypassing the vulnerable aquatic larval stage.

In the adult state they have tear ducts and movable eyelids and most species have ears that can detect airborne or ground vibrations.

They have a muscular tongue which in many species can be protruded.

A number of fossil cryptobranchids have been found but there are only three living species, the Chinese giant salamander ( Andrias davidianus ), the Japanese giant salamander ( Andrias japonicus ) and the hellbender ( Cryptobranchus alleganiensis ) from North America.

In addition, most species of amphibian have granular glands that secrete distasteful or poisonous substances.

They have four limbs except for the legless caecilians and a few species of salamander.

Some species in the Plethodontidae have a weak zone at the base of the tail and if the salamander is in danger or if the tail is grabbed by a predator, it breaks off, a process known as autotomy.

In air, where oxygen is more concentrated, some small species can rely solely on cutaneous gas exchange, most famously the plethodontid salamanders, which have neither lungs nor gills.

Tadpoles do not have true teeth but, in most species, the jaws have long, parallel rows of small keratinized structures called keradonts surrounded by a horny beak.

Some members of the genera Ambystoma and Dicamptodon have larvae that never fully develop into the adult form but this varies with species and with populations.

Those species that breed in smaller water bodies or other specialised habitats tend to have more complex patterns of behaviour in the care of their young.

Altogether, over two hundred toxins have been isolated from the limited number of amphibian species that have been investigated.

Some unicellular species rely entirely on external energy sources and have limited or no photosynthetic apparatus.

Almost all species have a tight cluster of leaves ( a rosette ), either at the base of the plant or at the end of a more-or-less woody stem ; the leaves are less often produced along the stem.

Almost all species have a tight cluster of leaves ( a rosette ) at the base of the plant or, in the tree-forming species, at the end of a woody stem.

* Those species which have relatively large dry seeds have a dark, crust-like ( crustose ) outer layer containing the pigment phytomelan.