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Topic: Choeropsis

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Morton

1849 in science

1849

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		Both living species of hippo, the Nile or common hippopotamus Hippopotamus amphibius and pygmy hippo Hexaprotodon (Choeropsis) liberiensis, are considered to be primitive descendants of large and clumsy prehistoric creatures that inhabited Europe, Asia, Africa, and even parts of North America.
		Corbet, G. (1969): The taxonomic status of the Pygmy hippopotamus, Choeropsis liberiensis, from the Niger Delta.
		Robinson, P.T. (1981): Bibliography for the pygmy hippopotamus Choeropsis liberiensis (Morton, 1844).
	moray.ml.duke.edu /projects/hippos/PygmyText.doc (2412 words)

	Hippopotamus
		A social and gregarious animal, the hippopotamus spends the day wallowing in rivers or waterholes only emerging at night to graze.
		The pygmy hippopotamus Choeropsis liberiensis inhabits West Africa.
		To the ancient Egyptians, the hippopotamus symbolized both evil and female fertility.
	www.geocities.com /TheTropics/Cabana/6873/hippo.html (84 words)

	IVIS - Chemical Restraint of Juvenile East African River Hippopotamus (Hippopotamus amphibius kiboko) at the San ...
		Caesarean section in a pygmy hippopotamus (Choeropsis liberiensis) and the management of the wound.
		Repair of rectal stricture and prolapse in a pygmy hippopotamus (Choeropsis liberiensis).
		Immobilization of a pygmy hippopotamus (Choeropsis liberiensis) for the removal of an oral mass.
	www.ivis.org /special_books/Heard/morris6/reference.asp (339 words)

	Scientific American: Rooting the River Horse (Site not responding. Last check: 2007-10-24)
		With its gaping maw, hairless body and eyes that sit high on its head, the semiaquatic hippo is one of the most distinctive members of Africa's mammalian menagerie.
		Two species exist today--the common Hippopotamus amphibius and the smaller Liberian hippo, Choeropsis liberiensis--and 40 more are known from the fossil record.
		Experts agree that hippos belong to the mammalian order Artiodactyla, a group of even-toed, hoofed creatures whose extant representatives include camels, pigs and ruminants such as cows.
	www.sciam.com /print_version.cfm?articleID=000CE021-9AEA-1213-987F83414B7F011C (533 words)

	IUCN Red List of Threatened Species: Hexaprotodon liberiensis
		The current evidence suggests that the geographic range (as measured by extent of occurrence) is severely fragmented and is continuing to decline in area, extent and quality.
		Corbet, G.B. The taxonomic status of the Pygmy Hippopotamus, Choeropsis liberiensis, from the Niger Delta.
		White, L. Population survey of the pygmy hippopotamus (Choeropsis liberiensis) on Tiwai Island, Sierra Leone.
	www.iucnredlist.org /search/details.php/10032/all (3221 words)

	Pygmy Hippo (Choeropsis liberiensis) (Site not responding. Last check: 2007-10-24)
		Feeds on tender shoots, leaves, roots, grasses, fallen fruit, and, unlike the river hippo, also on aquatic plants.
		The name of its genus (Choeropsis) means "pig-looking".
		Pygmy hippos usually live alone, or in pairs.
	www.cogsci.indiana.edu /farg/harry/bio/zoo/choerops.htm (118 words)

	African Wildlife Foundation: Wildlives
		This social, group-living mammal is so numerous in some areas that "cropping" schemes are used to control populations that have become larger than the habitat can sustain.
		The other, much smaller (440 to 605 pounds) species of hippo is the pygmy hippopotamus (Choeropsis liberiensis).
		Limited to very restricted ranges in West Africa, it is a shy, solitary forest dweller, and now rare.
	www.awf.org /wildlives/140/play (777 words)

	WWF - Niger River Delta - A Global Ecoregion
		One of these fish, Phractolaemus ansorgii, has a swim bladder that functions as a lung and permits it to survive in unoxygenated waters by breathing air at the surface.
		The delta also provides habitat for the Hippopotamus (Hippopotamus amphibius), the vulnerable pygmy hippo (Choeropsis liberiensis), and West African manatee (Trichechus senegalensis).
		The delta system is threatened by population growth, coastal urbanisation, oil and gas exploration, industrialisation, domestic and industrial waste discharges, the menace of introduced water hyacinth (Eichhornia crassipes), coastal erosion, and problems associated with aquaculture.
	www.panda.org /about_wwf/where_we_work/ecoregions/niger_river_delta.cfm (247 words)

	World Almanac for Kids
		The species is widely hunted, traditionally by harpooning, or by digging pitfalls, or by fencing it in and starving it to death.
		The pygmy hippopotamus, Choeropsis liberiensis, is about half the size of the common hippopotamus.
		It is found only in western Africa, especially in Liberia.
	www.worldalmanacforkids.com /explore/animals/hippopotamus.html (505 words)

	Background (Site not responding. Last check: 2007-10-24)
		Within the family hippopotamide, which is a subclass of artiodactyla (who are distinguished as having a plane of symmetry passing through the third and fourth digit of their foot, such as hippos, giraffes, and camels), there exist two different species of hippos.
		One is named Choeropsis liberiensis, which is the common pygmy hippo.
		An adult pygmy hippo weighs around 250 kg and can be found mostly in forested areas.
	www.engin.umich.edu /~cre/web_mod/hippo/backg.htm (515 words)

	The Elusive Pygmy Hippopotamus VHS (Site not responding. Last check: 2007-10-24)
		Did you know, however, that there is a second kind of hippo that is less than one-fifth that size?
		Choeropsis Liberiensis, pygmy hippos, live among the dense forests of four West African countries.
		Unlike their larger cousins that live in groups of up to two dozen, the pygmy hippo leads a more solitary life.
	www.buyindies.com /listings/1/0/1087923492656.html (127 words)

	Pygmy Hippopotamus Stamps
		Large males can weigh in at 3,600 kg.
		The pygmy hippo, Choeropsis liberiensis (or Hexaprotodon liberiensis) is much smaller than its larger cousin and weighs in at around 250 kg.
		The pygmy hippo inhabits the dense undergrowth of the forests of the Ivory Coast, Liberia, Guinea, and Sierra Leone.
	www.pibburns.com /cryptost/pygmyhip.htm (541 words)

	Fact Sheet - Hippopotamus
		The two modern species of hippos, found only in Africa, differ in size, diet, and habitat.
		Little is known about the secretive pygmy hippo, Choeropsis liberiensis, which inhabits rain forests and swamps.
		Much more is known about the large common hippo, which is found in rivers and lakes.
	www.seaworld.org /animal-info/animal-bytes/animalia/eumetazoa/coelomates/deuterostomes/chordata/craniata/mammalia/artiodactyla/hippopotamus-fs.htm (700 words)

	Chapter 3.1 - Action Plan
		The West African pygmy hippo has usually been referred to the genus
		Choeropsis but Coryndon (1977) has shown that it is essentially one of the hexaprotodonts - more generalized hippos, previously thought to be completely extinct.
		In spite of differences between this animal and the hexaprotodonts in the number of teeth, Coryndon believed they should no longer be placed in separate genera.
	www.iucn.org /themes/ssc/sgs/pphsg/APchap3-1.htm (978 words)

	[No title] (Site not responding. Last check: 2007-10-24)
		Life span: 20-40 years; 50 years in captivity
		The hippopotamus (hippo) belongs to the family Hippopotamidae, which includes two species, the hippopotamus (Hippopotamus amphibius) and the pygmy hippopotamus (Choeropsis liberiensis).
		The hippo is found in western, central, eastern and southern parts of Africa.
	schoolweb.missouri.edu /ashland.k12.mo.us/beth/hippo2.htm (458 words)

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