Search results
Results from the WOW.Com Content Network
A different regulator region has been found on Chromosome II of both species that affects the selection behavior of the females. [12] Pheromones play an important role in the sexual isolation of insect species. [13] These compounds serve to identify individuals of the same species and of the same or different sex.
Males found months later (June–August) are of lighter body weight and the molar teeth are less worn down, suggesting these males belong to a different generation. There is a drop off in the female population, but during the months of July and August, evidence of a gap between generations like the male gap.
In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then itself goes through the same series of stages, the ...
species differences may be caused by geographic isolation; the species may or may not occupy different habitats if they existed in sympatry; in cases of similar habitats in allopatry, species may be adapted to unknown ecological factors; if the species existed in sympatry, competition may drive habitat segregation that would be undetectable in ...
Hybrid speciation is a form of speciation where hybridization between two different species leads to a new species, reproductively isolated from the parent species. Previously, reproductive isolation between two species and their parents was thought to be particularly difficult to achieve, and thus hybrid species were thought to be very rare.
The hippopotamus (Hippopotamus amphibius) (/ ˌ h ɪ p ə ˈ p ɒ t ə m ə s /; pl.: hippopotamuses; often shortened to hippo (pl.: hippos), further qualified as the common hippopotamus, Nile hippopotamus and river hippopotamus, is a large semiaquatic mammal native to sub-Saharan Africa.
Each had an initial public offering (IPO), generating billions of dollars and loads of press. Plus, investors finally had the opportunity to buy shares in these renowned companies. IPOs can …
Their most widespread common name is morning glory, but some species in related genera bear that same common name and some Ipomoea species are known by different common names. Those formerly separated in Calonyction [ 6 ] ( Greek καλός kalós "good" and νύξ , νυκτός núx , nuktós , "night") are called moonflowers. [ 5 ]