Researchers discover cause of sea star wasting disease
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Updates every hour. Last Updated: 22-Dec-2025 04:11 ET (22-Dec-2025 09:11 GMT/UTC)
In a new study published in the BMC Biology, researchers in the Department of Organismic and Evolutionary Biology at Harvard, analyzed 156 limbs from 28 O. serratus fossil specimens to reconstruct the precise movement and function of these mysterious ancient arthropod appendages—shedding light on one of the planet’s earliest and most successful animals.
There are 157 non-native species have successfully invaded Dongting Lake, which is the second largest freshwater lake in China. Although some non-native species become important species in local aquaculture, aquarium trade and other industries. Many non-native species have caused significantly negative impacts on native biodiversity, environmental safety, human health and sustainable development.
In a new study, a UC Berkeley-led team of biologists observed gray wolves near Yellowstone National Park traveling 20 kilometers or more over rugged, mountainous terrain, with very young pups in tow. It is the first time gray wolves outside of the Arctic have been observed migrating, or shifting their territorial range, to be closer to prey during pup-rearing season.