Not exact matches
Many basilosaurids were probably active hunters,
similar to modern orcas, with mouths that were suited for biting and attacking, but Mystacodon has a mouth more suited for sucking in smaller
animals, leading the researchers to conclude that Mystacodon most likely represents an intermediate step between raptorial and filter feeding and between the
ancient basilosaurids and modern mysticetes.
Although the era Secord and his colleagues studied experienced a
similar increase in temperatures (five degrees Celsius or more) as is predicted for us for the near future (four degrees C), he points out the
ancient animals had tens of thousands of years to adapt to changing temperatures — rather than just centuries.
Studying
animals that show
similar hemispheric biases for their own vocalization — like primates, sea lions and horses — could reveal important clues about how
ancient language - processing mechanisms are, she adds: «Evolutionarily, this could go far beyond primates to a common ancestor for all mammals.
By comparing the V. carteri germ and somatic cell transcriptomes, Matt and Umen found that the somatic cells had more transcripts from young, lineage - specific genes, whereas the germ cells had more transcripts from
ancient genes that are
similar to those expressed in stem cells from
animals and land plants.
The
ancient species had numbered more than a million a century ago and — in a crash
similar to that of the American bison in the 19th century — was reduced to a few tens of thousands of
animals at its nadir.