artiodactyl
laelaps | June 7, 2010A female pronghorn (Antilocapra americana), photographed at Bryce Canyon National Park, Utah.
laelaps | November 7, 2007
Today's photo, like yesterday's, was taken at the Philadelphia Zoo, and I was fortunate enough to be able to catch the Hippos (Hippopotamus amphibius) as they were entering the water. I'm sure everyone has heard of their aggressiveness via television documentaries and other sources, but few have heard of the fact that hippos sometimes consume flesh. While hippos occasionally nibble on or play with carcasses in African waterways, in severe drought conditions they sometimes kill prey (as in one account of an impala running into the water to avoid Wild Dogs, only to be killed and consumed by…
laelaps | October 30, 2007
Most of the wildlife photographs I feature here were taken at zoos, but every once in a while I get a chance to photograph some indigenous creatures, White-Tailed Deer (Odocoileus virginianus) being the only relatively large mammal in the area. In fact, New Jersey has an overabundance of the deer, and it's strange to drive late at night and not see at least one along the side of the road (or even trying to cross it). While there were always deer here, they owe much of their population growth in the last 200 years to human development of land, especially the clearing of forests for lawns or…
laelaps | October 13, 2007
You might not normally think of them as artodactyls, but suids (i.e. pigs and their relatives) are another major family grouping within the order. Pictured above is one representative from Africa, the Red River Hog (Potamochoerus porcus), which lives in large groups of between 4 and 20 or so as Leopards (Panthera pardus) sometimes crave bacon. Commonly, it's often called the "Bush Pig" but shouldn't be confused with the actual Bushpig, Potamochoerus larvatus, another social swine from Africa.
laelaps | October 12, 2007
The Sable Antelope (Hippotragus niger) is one of the larger varieties of antelope in Africa, sometimes being referred to as one of the "Horse Antelope" belonging to the Subfamily Hippotraginae [of which the Addax (Addax nasomaculatus) and Oryx (Oryx sp.) are also members]. Sable Antelope differ from the Gerenuk (Litocranius walleri) mentioned earlier this week in that both sexes bear large horns, and while there is some sexual dimorphism (males having the larger horns), females also bear a respectable set. Even so, the male Sable Antelope don't let anyone forget that they're in charge, and…
laelaps | October 11, 2007
Given that the last two "pictures of the day" were of artiodactyls, I figured I'd keep going with the theme for the rest of the week. Today I've picked out a pair of shots of the Mhorr Gazelle (Gazella dama mhorr), taken last January at the Philadelphia Zoo. As you can guess from the scientific name I just mentioned, the Mhorr is a subspecies of Dama Gazelle (Gazella dama) which previously inhabited parts of the Sahara near Morocco in northern Africa. Today, however, the Mhorr is extinct in the wild and the Dama is critically endangered.
laelaps | October 10, 2007
The photo I posted yesterday of a male Gerenuk (Litocranius walleri) has prompted some discussion about other long-necked artiodactyls, especially the living representatives of the family Giraffidae. Although the family once contained more members (like the oddly-ornamented Sivatherium), only the Giraffe (Giraffa camelopardalis) and the Okapi (Okapia johnstoni) are extant. Pictured above is a female Okapi at the Bronx Zoo, the distinction between the sexes being easily distinguished as the female lacks the skin-covered protrusions made of ossified cartilage known as "ossicones" that are…
laelaps | October 9, 2007
Even though the Giraffe (Giraffa camelopardalis) most readily comes to mind when I think of a long-necked mammal, there are many other living artiodactyls that have long necks for their body size, one of my favorites being the Gerenuk, Litocranius walleri. Gerenuks are most commonly seen in East Africa and often stand up on their hind legs while browsing to make the most of the available food resources, allowing them a bit more reach than many of their antelope relatives. The picture above is of a male, taken in the summer of 2006 at Disney's Animal Kingdom theme park, as horns are only…