Village idiots by any other name

Mass [dolphin] strandings: Why?

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deep water animals (the species that most often are the victim of mass strandings) can not "see" a sloping sandy beach properly with its sonar. They detect the beach only when they are almost stranded already and they will panic and run aground.

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whales and dolphins may be navigating by the earth's magnetic field. When the magnetic field is disturbed (this occurs at certain locations) the animals get lost and may run into a beach.

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in some highly social species, the group leader may be sick and wash ashore. The other members try to stay close and may strand with the group leader.

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when under severe stress or in panic, the animals may fall back to the behavior of their early ancestors and run to shore to find safety.

Spot the moronic evolutionist answer.