Myotragus of the island of Majorca ("Myotragus pepgonellae") indicate that "Myotragus balearicus", in spite of being a browsing animal, descended originally from grazers. The closest related species to "Myotragus" are ovine, such as the extinct "Nesogoral" of the Plio-Pleistocene of Sardinia, the old "Gallogoral" of France (possible mainland ancestor of both "Myotragus" and "Nesogoral"), "Ovis" (present sheep and mouflon) and the mountain goats of Central Asia. The last ancestor common to "Myotragus" and "Nesogoral" arrived at Majorca and Sardinia around 6 million years ago, a time at which the Straits of Gibraltar were closed and the Mediterranean Sea was a small
Animal testing Animal testing Animal testing, also known as animal experimentation, animal research and "in vivo" testing, is the use of non-human animals in experiments that seek to control the variables that affect the behavior or biological system under study. This approach can be contrasted with field studies in which animals are observed in their natural environments or habitats. Experimental research with animals is usually conducted in universities, medical schools, pharmaceutical companies, defense establishments and commercial facilities that provide animal-testing services to industry. The focus of animal testing varies on a continuum from pure research, focusing on developing fundamental knowledge of an