Скачать или смотреть Reef manta rays are picky about their friends

These manta rays may not want to be friends. A recent study found that reef manta rays are picky about their social circles and can even form long-lasting social bonds. Researchers studied 500 groups of reef manta rays over five years. They found that these rays seem to have social meet-up points where they feed or are cleaned by cleaner wrasse fish together. Manta rays are intelligent creatures that forage and play together. They can be identified by unique markings on their underbelly. Researchers used a combination of underwater observation and drone footage to observe the rays without disrupting their natural movement.

Read more: https://news.mongabay.com/2019/08/man...