Scientists investigate death of 10,000 endangered ‘scrotum’ frogs in Peru

Researchers and campaigners suspect pollution killed the rare Titicaca water frogs that are endemic to the famous lake and derive their nickname from their wrinkly skin

• Dan Collyns in Lima

Scientists are investigating the mysterious deaths of at least 10,000 endangered frogs, in a river which leads into South America’s most famous lake on…

• Scientists investigate death…