How to ultrasound a 15-foot-wide giant mother manta

Scientists want to know where manta rays go with their rare and infrequent pregnancies. Underwater ultrasounds help get them ...
The Conversation

Reef manta rays are in decline globally – but new research finds one place in Indonesia where these charismatic rays are thriving

Raja Ampat archipelago in West Papua is home to Indonesia’s largest population of reef manta rays, Mobula alfredi. They are not mammals, but cartilaginous fish that are related to sharks. This species ...