Species numbers alone do not fully capture how ecosystems are changing. In a global study, scientists analyzed long-term data from nearly 15,000 marine and freshwater fish communities. They found that ...

Fossil fish ear stones reveal that today’s coral reefs have shorter food chains and less diversity than ancient reefs before human impact.

Caribbean reef food webs have compressed by up to 70% over the past 7,000 years as fish diets converge and ecosystems become ...

Food chains in the coral reefs of the Caribbean are up to 70% shorter today than in the past, and fish living there have a ...