Coelacanth - Wikipedia
网页The coelacanth's heart is shaped differently from that of most modern fish, with its chambers arranged in a straight tube. The coelacanth's braincase is 98.5% filled with fat; only 1.5% of the braincase contains brain tissue.
Coelacanth | Smithsonian Ocean
网页Coelacanths might best be described as occupying a side branch in the basal portion of the vertebrate lineage, closely related to but distinct from the ancestor of tetrapods (four-legged vertebrates).
NOVA | Ancient Creature of the Deep | Anatomy of the Coelacanth - PBS
网页Examine the anatomy of the coelacanth, including its armored scales, hinged skull, and limb-like fins.
West Indian Ocean coelacanth - Wikipedia
网页This behavior is made possible due to the coelacanth's ability to move both its upper and lower jaw, which is a unique trait in extant vertebrates that have bone skeletons. [17] Population and conservation.
NOVA - Official Website | Anatomy of the Coelacanth
网页2003年1月1日 · Here, in our clickable coelacanth, see what makes this ancient fish stand out from all others. Launch Interactive. This survivor from the age of dinosaurs has body parts found in no other living...
Coelacanth Reveals Secrets of Vertebrate Skull Evolution
网页2019年4月23日 · The skull of a coelacanth happens to be completely split in half by a special intracranial joint and its brain is so ridiculously small, it remains only 1% the size of the cavity that houses it, which makes its survival unique amongst all living vertebrates.
Coelacanths: the fish that 'outdid' the Loch Ness Monster
网页Coelacanths have a bony skull which has an intracranial joint, a hinge that allows the fish to open its mouth especially wide. This feature isn't seen in any other living vertebrate. Can an extinct animal come back to life? Finding a living coelacanth has been described as like finding a dinosaur
Earliest known coelacanth skull extends the range of ... - Nature
网页2012年4月10日 · This study presents the earliest known coelacanth skull (Euporosteus yunnanensissp. nov.), extending the chronological range of anatomically modern coelacanths by 17 million years.
How the coelacanth got its fins - New Scientist
网页2007年8月10日 · The fin bones interlock in a way that characterises coelacanths and allowed Friedman and his colleagues to identify the fossil as one of their ancestors.
A newly recognized fossil coelacanth highlights the early …
网页2005年11月1日 · Coelacanths have long had an iconic place in the study of vertebrate evolution for their apparent anatomical conservatism over geological time, but Holopterygius provides clear evidence for rapid morphological evolution early in the history of this clade.
- 某些结果已被删除