suggesting that human ACE2 transgenic pigs are a viable large animal model for COVID-19.

These gentle giants roam the grasslands, using their long trunks to gather food and water. With their iconic tusks and wrinkled skin, they are one of the most recognizable animals in the world. But ...

黑斑羚穿越卡富埃河附近的大草原，赞比亚大马省蒙布瓦。 Timothy A. Gonsalves，CC BY-SA 4.0，来自 Wikimedia Commons。 大象 ...

Gland, Switzerland, 8 January 2025 (IUCN) – The largest global assessment of freshwater animals on the IUCN Red List of Threatened Species™ to date has revealed that 24% of the world’s freshwater fish ...