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RE: When narwhals (Monodon monoceros) rub their tusks together, it is believed to be to share information about the water, not as a sign of aggressive rivalry

in #science7 years ago

wau fish very much whether it is a phenomenon or just a fish who are migrating, I am very happy to see your post, because it is very rare to see photos of big fish who are gathering.thanks@valth

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I'm glad you liked it :) But it's not a fish, it's a marine mammal.