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  • Evolution of the vertebrate skeleton: morphology, embryology . . .
    Two major skeletal systems—the endoskeleton and exoskeleton—are recognized in vertebrate evolution Here, we propose that these two systems are distinguished primarily by their relative positions, not by differences in embryonic histogenesis or cell lineage of origin Comparative embryologic analyses have shown that both types of skeleton have changed their mode of histogenesis during
  • Evolution and Phylogeny of Vertebrates | SpringerLink
    Fossil ascaphids have not been identified with certainty, but discoglossids are recorded with confidence from around 145 Ma BP, basal pipids from 120 Ma BP, and early neobatrachians from at least 80 Ma BP, these dates giving the latest possible divergence times for each lineage
  • Whale - Wikipedia
    There are at least 86 cetacean species that are recognized by the International Whaling Commission Scientific Committee [112] As of 2020 [update] , six are considered at risk, as they are ranked " Critically Endangered " (North Atlantic right whale [ 113 ] ), " Endangered " (blue whale, [ 114 ] North Pacific right whale, [ 115 ] and sei whale
  • Giant lungfish genome elucidates the conquest of land by . . .
    The largest animal genome sequenced so far is the 32-Gb 8 genome of the axolotl salamander (Ambystoma mexicanum) To overcome the challenges of sequencing and assembling the even-larger genomes of
  • Huge cache of mammal genomes offers fresh insights on human . . .
    In one analysis, a team used this concept to estimate that at least 10 7% of the human genome is identical to the genomes of almost all of the species the researchers studied 3 Most of these
  • Scientists are on a path to sequencing 1 million human . . .
    The first full human genome was sequenced 20 years ago Now, a project is underway to sequence 1 million genomes to better understand the complex relationship between genetics, diversity and disease
  • Comparative Analysis of Mammal Genomes Unveils Key Genomic . . .
    Comparative genomics have demonstrated that genomic factors underlying both, species lifespans and longevity of individuals, are in part shared across the … Mol Biol Evol 2021 Oct 27;38(11):4948-4961 doi: 10 1093 molbev msab219





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