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  • Middle Jurassic fossils document an early stage in . . . - PNAS
    Salamanders comprise 760+ living species and are important components of terrestrial and freshwater ecosystems (1, 2) They are ecologically and developmentally diverse, including burrowers, climbers, cave dwellers and neotenic swimmers, and exhibit great variation in life history and degrees of parental care (3–5)
  • Mind The Gaps: Whats Missing in Our Understanding of Feather . . .
    A few years ago I reviewed molt strategies in seabirds and found no information on molt for 25% of the 314 species I wanted to include in the review (Bridge 2007) The situation for terrestrial species is similar (Ryder and Wolfe 2009) Birds demonstrate a bewildering array of molting strategies
  • The Society for Conservation Biology
    The following were included in the analyses: 2630 cells and 926 bird species for Nearctic, 6123 cells and 1847 bird species for Palearctic, 1087 cells and 2093 bird species for Indomalayan, 2262 cells and 4228 bird species for Neotropics, 2466 cells and 2214 bird species for Afrotropics, and 1212 cells and 1892 bird species for Australasia
  • Birds’ cultural benefits | Stanford Report
    Around the world, birds are deeply embedded in human culture New research finds the birds people value most are under the greatest threat from deforestation and climate change
  • Phylogenetic and spatial distribution of evolutionary . . .
    The origin of turtles and crocodiles and their easily recognized body forms dates to the Triassic and Jurassic Despite their long-term success, extant species diversity is low, and endangerment is extremely high compared to other terrestrial vertebrate groups, with ~ 65% of ~ 25 crocodilian and ~ 360 turtle species now threatened by exploitation and habitat loss
  • Paraves - Wikipedia
    Birds, members of the paraves, are the only living dinosaurs Paraves are a widespread group of theropod dinosaurs that originated in the Middle Jurassic period In addition to the extinct dromaeosaurids, troodontids, anchiornithids, and possibly the scansoriopterygids, the group also contains the avialans, which include diverse extinct taxa as well as the over 11,000 species of living birds
  • DISCUSSION STUDY GUIDE - IDEA) Center
    Currently known unique animal species number over (circle one) a thousand million billion 1 3 Current estimates suggest about five times the previous answer for the number of animal species yet to be discovered and classified True or false? 1 4 Wings are not the only unique features of birds Hidden beneath bird’s feathers and skin





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