In a fascinating new study, it appears that dolphins can actually develop Alzheimer’s disease. The study conducted by Oxford University has been published in the journal Alzheimer’s & Dementia. Alzheimer’s in people is evidenced by amyloid plaques and neurofibrillary tangles – which can be found on dolphins who died in the wild and washed up on the Spanish coast.
Another study in August of 2017 also showed evidence of Alzheimer’s disease in chimpanzees. Wild animals have typically not shown signs of Alzheimer’s because they die shortly after their fertility period is over, so they don’t always live long enough to show evidence of this disease.