犏牛是牦牛（Bos grunniens）和普通牛（Bos taurus）的杂交后代，兼具高寒极端环境适应能力以及较好的产肉、奶等优良经济性状。雌性犏牛具有正常的生育能力，但雄性犏牛因生精阻滞而不完全育，是探究哺乳动物生殖隔离...
阅读全文Study design and donor information The results shown in Supplementary Fig. 1A were performed under permit 2021-00055 and amendment 2021-01387 approved by the Swedish ethics review authority and is par...
阅读全文Ethics statement Use of human blood and serum was approved by the Walter and Eliza Hall Institute of Medical Research Human Ethics committee under approval number 19-05VIC-13. Parasite culture P. falc...
阅读全文Research suggests that microbiomes play a major role in structuring plant communities and influencing ecosystem processes, however, the relative roles and strength of change of microbial components ha...
阅读全文Natural vegetation is essential to achieving global goals on climate, biodiversity, soil conservation, and water quality. Credit: Martine Maron A full 50% of Earth's surface must remain vegetated if h...
阅读全文Credit: Griffith University A new Griffith study has found that bushfire fighting chemicals commonly marketed as environmentally friendly can severely affect frog development. Published in Aquatic T...
阅读全文A male cockroach attempts to attract a female to mate by offering nuptial food excreted from a gland on the back of his abdomen. A romantic dinner for two. Credit: Ayako Wada-Katsumata, North Carolina...
阅读全文Cells of xenic (a–d) and axenic (e–g) Thalassiosira rotula (SEM). (a) Bacteria attached to young frustules. (b) Bacteria attached to old frustules and threads (arrow). (c) Bacteria attached to damag...
阅读全文There are hidden worlds in nature. Credit: PeopleImages.com/Yuri A/Shutterstock Life existed without human beings for more than 99.9% of Earth's history. Yet we often ignore the achievements of specie...
阅读全文Ciliate culture viewed under the microscope. Credit: Mya Breitbart USF College of Marine Science Scientists have discovered a parasite is behind a severe die-off of long-spined sea urchins across the ...
阅读全文Credit: Aleksey Mnogosmyslov/Shutterstock While we may enjoy the company of companion animals or a fleeting encounter with wildlife, many people believe humans have a superior consciousness of the wor...
阅读全文Bivariate Moran’s I (2017). The first map shows agritourism as the local county of interest and direct sales as the neighboring counties (first map); the second map shows agritourism as the neighbori...
阅读全文A, Holotype (AM F.99374) skeleton of Umoonasaurus demoscyllus as mounted for display at AM. B, Segmented and rendered model of the described ‘Sample 1’ gastric mass recovered with AM F.99374. C, ‘S...
阅读全文Jack Juvik with a micrograph showing corn's aleurone layers. Credit: University of Illinois at Urbana-Champaign What if, by adding a couple of cell layers inside a corn kernel, the grain could become ...
阅读全文Our study used large genomic data sources and a multi-omic approach to investigate biomolecular associations with EAA and multivariate longevity (Fig. 1). We identified novel gene associations with EA...
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