Populations

• A new study published in the journal Science documents that climate change is making fish smaller, posing significant threats to global food security and fishery productivity. • The research warns that the shift toward smaller fish species could worsen fishery losses by as much as 50%, impacting both commercial fishing industries and food availability worldwide. • The findings highlight the cascading ecological effects of climate change on marine ecosystems and underscore the urgency of addressing global warming to protect food systems.

An analysis of ancient and modern DNA suggests the extent of convergent evolution in different peoples around the world is even greater than we thought