Mysterious bulging-headed orcas drift dead in an unexplained mass delinquency

Mysterious bulging-headed orcas drift dead in an unexplained mass delinquency

D orca type (Orcinus orca) photographed off the coast of southern Chile in 2019. (Image credit: NOAA Fisheries)

A strange and rare group of orcas has been stranded on a beach in Chile – the first such occurrence in 67 years and only the second ever.

orcas (Orcinus orca) They belong to the ‘Type D’ subgroup – a distinct group of orcas native to the Southern Hemisphere. Type D orcas are so different from other orcas that some scientists suggest they may actually be a separate species entirely.

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