Like Pilot whales?
Pilot whales belong to the Delphinidae family, which consist of 30 species. Short and long-finned Pilot whales are the second largest Dolphin just behind the Killer Whale. they are known to be in tight family bonds, consisting of a monarch. Pilot whales have been highly recorded in mass strandings of 10s, sometimes 100s of individuals, mysteriously beaching themselves on land. some scientist say mass strandings may be caused by a result of one Pilot whale beaching itself, and the rest of the pod follows the Whale do to tight bonds.
Art by @orkydorky Done in Paint Tool Sai with drawing Tablet.