As lungfish ambled across the floor of the tank, they raised their bodies off the surface — something only four - legged land animals usually do, according to a paper published online today in the Proceedings of the National Academy of Sciences.
* Correction, 5 February, 9:16 a.m.: The image that appears with this article was originally identified
as a lungfish.
Not exact matches
James Kirkland, state palaeontologist at the Utah Geological Survey, identified the tooth
as coming from the upper jaw of a
lungfish in the extinct genus Ceratodus, a freshwater bottom - feeder which used massive tooth plates to crunch shelled animals.
James Kirkland, a palaeontologist at the Utah Geological Survey, identified it
as being from a
lungfish of the extinct genus Ceratodus, which lived between 160 million and 100 million years ago.
It was Charles Darwin who coined the term «living fossil» to describe extant creatures, such
as the gar (another Great Lakes resident) and the
lungfish, which have been present for many millions of years in the fossil record yet appear to have undergone very little anatomical change.
And the marbled
lungfish — a living piece of evolutionary history with the largest genome of any animal — is also rated
as of least concern, despite being commonly eaten by humans.
As with the
lungfish, the salamanders» lungs vibrated in a frequency range that they were able to hear.
The African
lungfish (Protopterus annectens), a 230 - million - year - old species found in backwaters in countries such
as Senegal, has long been rumored to stride along riverbeds.
Lobe - finned ancestors of the
lungfishes as well
as tetrapods could have evolved hindlimb propulsion and the ability to walk on the substrate at the bottom of a lake or marsh millions of years before limbs with digits and land - dwelling animals appeared.
As a result, Bedford Borough Council decided that three new classrooms and one new nursery unit needed to be built and chose the Connect by
Lungfish method, procured through the Scape National Minor Works framework, delivered by Kier.
Back at 400 million years ago, our ancestors are just venturing out of the sea onto land
as some sort of
lungfish or amphibian.