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New developments in the field of science
T40cfr403:
Scientists Suggest a New Layer to Crows’ Cognitive Complexity
https://www.smithsonianmag.com/smart-news/scientists-suggest-a-new-layer-to-crows-cognitive-complexity-180981071/?utm_source=smithsoniandaily&utm_medium=email&utm_campaign=20221115daily-responsive&spMailingID=47644451&spUserID=MTIwOTQxNDc4OTA2MgS2&spJobID=2342306055&spReportId=MjM0MjMwNjA1NQS2
Paper: Recursive sequence generation in crows - https://www.science.org/doi/10.1126/sciadv.abq3356
T40cfr403:
This bird hadn’t been documented by scientists since 1882. Then they captured video of it in Papua New Guinea
https://www.cnn.com/2022/11/19/world/black-naped-pheasant-pigeon-scn-trnd/index.html
Researchers captured footage of the black-naped pheasant-pigeon 140 years after the bird was last documented by scientists.
T40cfr403:
Bustards may use plants to treat STIs during the breeding season
https://www.newscientist.com/article/2348309-bustards-may-use-plants-to-treat-stis-during-the-breeding-season/
T40cfr403:
How a 67-Million-Year-Old Fossil Turned the Theory of Bird Evolution Upside-Down
https://www.smithsonianmag.com/smart-news/how-a-67-million-year-old-fossil-turns-the-theory-of-bird-evolution-upside-down-180981219/?utm_source=smithsoniandaily&utm_medium=email&utm_campaign=20221202daily-responsive&spMailingID=47714431&spUserID=MTIwOTQxNDc4OTA2MgS2&spJobID=2360245678&spReportId=MjM2MDI0NTY3OAS2
Paper: Cretaceous ornithurine supports a neognathous crown bird ancestor
https://www.nature.com/articles/s41586-022-05445-y.epdf?sharing_token=ZENkusk1jt6fBeG-T9ILBtRgN0jAjWel9jnR3ZoTv0MBBzMKGv5GVnKa1CVHdQQIeCqG4GRl5GeHxwwtcSFiMHmklqR5HA0qheOw3m3NzoSoG2N7FpMFY4dd7aZD77ev27KhmgrF8WzOUdHFfWClWV027TlML6GaWh10tkKykrODjZD7jJdN3FP6vH3pJzufteCP0p6qpEKwMJ8a8U5xi8WyGh1A-zY4CLBzZaHfZDQ%3D&tracking_referrer=www.smithsonianmag.com
Artist’s reconstruction of Janavis finalidens Phillip Krzeminski
T40cfr403:
Autonomous P-Flap ornithopter uses a claw to perch like a bird
https://newatlas.com/drones/p-flap-ornithopter-claw-perch/
A close look at P-Flap's claw mechanismRaphael Zufferey
Paper: How ornithopters can perch autonomously on a branch
https://www.nature.com/articles/s41467-022-35356-5
A Rendered view of the leg-claw system with the flapping-wing robot. The five degrees of freedom are displayed as well as the features necessary for perching flights. B The steps of the proposed perching method for ornithopters. C Perching sequence. D Eagle shortly before landing on a branch by D. Freeman, CC BY-SA 2.0.
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