By providing giraffe subspecies with full species status, this will help conservation organizations make plans to preserve the most threatened populations.
These (sub)species include the Nigerian giraffe (Currently: Giraffa camelopardalis peralta), which numbers only 160 individuals, and the Rothschild giraffe (Currently: Giraffa camelopardalis rothschildi), which numbers only several hundred.
A biological species is defined as a group of organisms capable of interbreeding and producing fertile offspring.
“Using molecular techniques we found that giraffes can be classified into six groups that are reproductively isolated and not interbreeding,” in the wild, said Brown.
They have thick scaly skin that is heavily armored.
The Nile crocodile is an opportunistic apex predator and a very aggressive species of crocodile that is capable of taking almost any animal within its range. Their diet consists mostly of different species of fish, reptiles, birds and mammals.
This was a time of intense climatic change in sub-Saharan Africa.
Taken together, these data have important implications for conservation planning because different species of giraffes present different conservation priorities and challenges.
The Nile crocodile (Crocodylus niloticus) is an African crocodile, the largest freshwater predator in Africa, and may be considered the second largest extant reptile in the world, after the saltwater crocodile (Crocodylus porosus). With the advent of modern technologies, more precise definitions have been formulated based on similarities in DNA, morphology or song, or some combination of these. However, because this is a very imprecise definition, there are other, more precise, species concepts.However there was disagreement between the sexes over how important it is to know a partner's 'magic number'.Just 45 per cent of women said they would want to know how many people their partner had slept with, while 53 per cent of men would want to ask the question.