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Related Articles from SNS

Hawai'i's last false killer whales threatened by nutritional stress and warming seas

Hawai'i's last false killer whales threatened by nutritional stress and warming seas Sadie Harley Scientific Editor Robert Egan Associate Editor A seven-year collaborative study has revealed alarming fluctuations in the health of Hawaii's endangered insular false killer whales, with some individuals losing nearly a quarter of their body weight in just a few months. Published in Endangered Species Research, the findings provide the first quantitative evidence that nutritional stress and...

Phys.org 5d ago

A 5.3-million-year-old deep-sea whale necropolis in the Diamantina Zone

Abstract Whale falls are biodiversity oases at seabeds1,2,3,4,5,6, yet their record from the oceans has remained sparse and fragmentary6,7. Here we report the discovery of a vast whale necropolis in the Diamantina Zone (4,616- to 7,001-m depth), extending about 1,200 km along the sea floor of the southeastern Indian Ocean. This area has a deep and extensive accumulation comprising five modern natural whale-fall communities and 476 fossil cetaceans recorded.

Nature 17h ago

Two decades of data show that climate change is transforming Biscayne Bay to be warmer, saltier and more acidic

Two decades of data show that climate change is transforming Biscayne Bay to be warmer, saltier and more acidic Stephanie Baum Scientific Editor Robert Egan Associate Editor Climate change and sea level rise are altering the chemistry of Biscayne Bay in ways that could threaten South Florida's coastal ecosystems, water resources, fisheries, and recreation, according to a study led by scientists from the University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science and...

Phys.org 8d ago

Whole-genome duplication shaped cell-type evolution in the vertebrate brain

Abstract The complex brains of vertebrates have more cell types than those of their closest relatives. Whole-genome duplications (WGDs) occurred during early vertebrate evolution1, but it is unclear whether the duplicated genes (ohnologues) facilitated cell-type evolution. Here using brain single-cell transcriptomes from five chordates—human2, mouse3, lizard4, lamprey5 and amphioxus—we report that many cell-type families with conserved core transcription factors in vertebrates do not show...

Nature 17h ago