Manta rays and whale sharks are among the largest filter-feeding fishes on the planet. To power their bulk, they sieve massive quantities of plankton out of the water. But new research off the coast of Indonesia suggests their meals come with an unwanted garnish: an alarming amount of plastic waste.
The world’s biggest fish is the mysterious whale shark, which can grow as heavy as 18,000kg and as large as 18m, though most top out a bit less than that. It also appears these behemoths can live to be 130 years old, new observations and modelling have shown.