|
Santarem Marmoset
The Santarem marmoset (''Mico humeralifer''), also known as the black and white tassel-ear marmoset, is a marmoset endemic to the Brazilian states of Amazonas and Pará. Description The Santarem marmoset is a small monkey, with a head-body length of . Adults have been reported to weigh anything from . Its physical form is similar to that of other marmosets, with lower canines that barely protrude above the line of the incisors and claws (rather than nails) on all of their digits except for the big toe. It most closely resembles the Maués marmoset in appearance, differing in having paler fur and in the shape of the ear tassels. Males and females are similar in size. The scientific name "''humeralifer''" roughly translates as "wearing a shoulder cape" and refers to the mantle of light grey fur that covers the animal's shoulders. There are also patches of whitish fur on the hips, but otherwise the body is black with irregular grey spots over the back and flanks, and yellowish on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Étienne Geoffroy Saint-Hilaire
Étienne Geoffroy Saint-Hilaire (15 April 177219 June 1844) was a French naturalist who established the principle of "unity of composition". He was a colleague of Jean-Baptiste Lamarck and expanded and defended Lamarck's evolutionary theories. Geoffroy's scientific views had a transcendental flavor (unlike Lamarck's materialistic views) and were similar to those of German morphologists like Lorenz Oken. He believed in the underlying unity of organismal design, and the possibility of the transmutation of species in time, amassing evidence for his claims through research in comparative anatomy, paleontology, and embryology. He is considered as a predecessor of the evo-devo evolutionary concept. Life and early career Geoffroy was born at Étampes (in present-day Essonne), and studied at the Collège de Navarre, in Paris, where he studied natural philosophy under M. J. Brisson. He then attended the lectures of Daubenton at the College de France and Fourcroy at the Jardin des Pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
