Moth species uses magnetism to migrate

Monarch butterflies and bogong moths are the only insects known to undertake migratory journeys to specific sites year after year.

An Australian species, bogong moths (Agrotis infusa) flee the harsh conditions of the arid plains by migrating long distances to spend summer in cool caves of the continent’s alpine region. The butterflies (Danaus plexippus) use an internal sun compass for their journey, but the bogongs moths can’t do that because they fly at night.

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