Facts about Species
Tigers, lions, leopards, and jaguars are different species, but each are similar enough to belong to the same genus (Panthera).
Sympatric speciation is held to occur when new species emerge in the same geographic area.
Less than 2 million species (perhaps only 2 percent or less of all species) have been identified.
Polyprotic acids are able to donate more than one proton per acid molecule, in contrast to monoprotic acids that only donate one proton per molecule.
The genus is listed first (and capitalized) followed by a species epithet (which is not capitalized).
Nonetheless, today biologists lack consensus in how to define the term and what constitutes a species.
Speciation is the term that refers to creation of new and distinct biological species by branching off from the ancestral population.
In zoology, only the subspecies is used, while in botany the variety, subvariety, and form are used as well.
The name of the species is the whole binomial not just the second term of the binomial (the specific epithet).
Extinction is not an unusual event in geological time—species are created by speciation, and disappear through extinction.
The moment of extinction generally occurs at the death of the last individual of that species.
When an unknown species is being referred to, this may be done by using the abbreviation "sp."
Nevertheless, no species concept yet proposed is entirely objective, or can be applied in all cases without resorting to judgment.
Once a species appears, the fossil record does not change much during its existence, which may be several million years.
Ernst Mayr maintains that one cannot even write about evolution, or most aspects of the philosophy of biology, without understanding the meaning of the biological species.
The term stained glass generally refers to glass that has been colored by adding metallic salts during its manufacture.
When an unknown species is being referred to, this may be done by using the abbreviation "sp."
cies. 1. Biology A group of closely related organisms that are very similar to each other and are usually capable of interbreeding and producing fertile offspring. The species is the fundamental category of taxonomic classification, ranking below a genus or subgenus.
There are three accepted living species of Trichechidae, representing three of the four living species in the order Sirenia: the Amazonian manatee (Trichechus inunguis), the West Indian manatee (Trichechus manatus), and the West African manatee (Trichechus senegalensis).
Beaver Benefits – A Keystone Species. While beavers are considered to be pests by some, scientists actually have proven that beavers are a “Keystone” species in North America. This means that beavers play a crucial role in biodiversity.
They also may evolve varied characteristics for attracting mates. That is, different groups evolve in different directions. Over time, these groups or populations may become so different that they can no longer breed together--separate species are formed. The Darwin Manuscripts Project at the Museum Learn more here.
Darwin's Theory of Evolution via Natural Selection: a) Species change over time; some traits become more common, others less. ... The traits that become more common are the ones that are “adaptive” or “increase fitness” (that is, a creature's chances of living longer and producing more offspring).
Great Hammerhead Shark (Sphyrna mokarran)Basking Shark (Cetorhinus maximus)Sawshark (Pristiophoriformes)Common Thresher Shark (Alopias vulpinus)Wobbegong or Carpet Sharks (Orectolobidae)Nurse Shark (Ginglymostoma cirratum)Goblin Shark (Mitsukurina owstoni)Frilled Shark (Chlamydoselachus anguineus)
There are at least 2,450 native plant species found in California's desert, according to a great article by Chris Clarke on desert life, posted at KCET.Jan 11, 2012
Flying penguins. Flying penguins are a very recent addition to the penguin family in evolutionary terms. A few isolated species have evolved to make the most of their small wings, allowing them to migrate to warmer climes for the harsh Antarctic winter months.