Deinonychus is a
genus of
carnivorousdromaeosauriddinosaur that existed during the
Early Cretaceous. It contains only a single species, D. antirrhopus. Fossils of the 3.4 meter (11 ft) long dinosaur have been recovered from the
U.S. states of
Montana,
Wyoming, and
Oklahoma, though teeth attributed to Deinonychus have been found as far east as
Maryland. A 1960s study of Deinonychus revolutionized the way scientists thought about dinosaurs, leading to the "
Dinosaur renaissance" and igniting a debate on whether dinosaurs were
warm-blooded. Where the popular conception of dinosaurs had been one of plodding reptilian giants, the study's description of Deinonychus' small body, sleek horizontal posture,
ratite-like spine and enlarged raptorial claws suggested an active, agile predator. As in other dromaeosaurids, the tail vertebrae have a series of ossified tendons and super-elongated bone
processes. These features would seem to make the tail into a stiff counterbalance, but fossils of closely-related species suggest that, in life, the tail could swish to the sides with a high degree of flexibility. Deinonychus teeth and other remains have been found closely associated with those of the ornithopod Tenontosaurus, implying that it was hunted or at least scavenged upon by Deinonychus.
(more...)
... that a planet was discovered around the star MOA-2009-BLG-387L after it eclipsed a background star, refracting the star's light in a process called
gravitational microlensing?
A 1925 photo of Wongudan, an altar site in
Seoul built in 1897 as a location for the performance of the
rite of heaven.
KingSeongjong of the
Goryeo Dynasty was the first to perform the rite, designed to ensure a bountiful harvest, in the tenth century. The practice was discontinued by later Goryeo kings, revived briefly in the mid fifteenth century by
Sejo of the
Joseon Dynasty, then reinstated with the founding of the
Korean Empire in 1897. Much of the altar complex was destroyed during the
Japanese occupation, and the gate and fountain seen here were also subsequently removed, leaving only the three-storey Hwangungu
pagoda remaining.
This Wikipedia is written in
English. Started in 2001 (2001), it currently contains
3,646,499 articles. Many other Wikipedias are available; some of the largest are listed below.
Deinonychus is a
genus of
carnivorousdromaeosauriddinosaur that existed during the
Early Cretaceous. It contains only a single species, D. antirrhopus. Fossils of the 3.4 meter (11 ft) long dinosaur have been recovered from the
U.S. states of
Montana,
Wyoming, and
Oklahoma, though teeth attributed to Deinonychus have been found as far east as
Maryland. A 1960s study of Deinonychus revolutionized the way scientists thought about dinosaurs, leading to the "
Dinosaur renaissance" and igniting a debate on whether dinosaurs were
warm-blooded. Where the popular conception of dinosaurs had been one of plodding reptilian giants, the study's description of Deinonychus' small body, sleek horizontal posture,
ratite-like spine and enlarged raptorial claws suggested an active, agile predator. As in other dromaeosaurids, the tail vertebrae have a series of ossified tendons and super-elongated bone
processes. These features would seem to make the tail into a stiff counterbalance, but fossils of closely-related species suggest that, in life, the tail could swish to the sides with a high degree of flexibility. Deinonychus teeth and other remains have been found closely associated with those of the ornithopod Tenontosaurus, implying that it was hunted or at least scavenged upon by Deinonychus.
(more...)
... that a planet was discovered around the star MOA-2009-BLG-387L after it eclipsed a background star, refracting the star's light in a process called
gravitational microlensing?
A 1925 photo of Wongudan, an altar site in
Seoul built in 1897 as a location for the performance of the
rite of heaven.
KingSeongjong of the
Goryeo Dynasty was the first to perform the rite, designed to ensure a bountiful harvest, in the tenth century. The practice was discontinued by later Goryeo kings, revived briefly in the mid fifteenth century by
Sejo of the
Joseon Dynasty, then reinstated with the founding of the
Korean Empire in 1897. Much of the altar complex was destroyed during the
Japanese occupation, and the gate and fountain seen here were also subsequently removed, leaving only the three-storey Hwangungu
pagoda remaining.
This Wikipedia is written in
English. Started in 2001 (2001), it currently contains
3,646,499 articles. Many other Wikipedias are available; some of the largest are listed below.