Greetings Earthlings! 🙂
Today I’d like to explore something I’ve been wondering about a lot recently: can animals be autistic?
We’ve often been told how closely related human and animal genomes are, but what about our brains?
I often look at my German Shepherd and see a lot of autistic traits in him- he has ADHD and anxiety, behaves inappropriately, thinks creatively (he once buried a bone in a mattress) and never really grew out of his puppy brain despite recently turning 6!
^^^Not my dog, but similarly bonkers! 😛 😉
Naturally, I could be imagining it (as a scientist it’s hard not to over analyse), but what does the evidence have to say?
In clinical research, there are a number of animal models which have been genetically bred to exhibit autistic traits including rats, fruit flys, monkeys and most commonly mice. These animals will have mutations in genes that have been linked to autism which causes them to exhibit some common autistic traits. In the mouse model for example, mice show signs of repetitive behaviours, deficits in social interaction and reciprocation, memory deficits and increased aggression.
But what about in nature?
There is very little evidence to suggest that animals can be autistic, however, a recent study by veterinary behaviorists in the USA has indicated that there is evidence of canine autism!
Maybe I should get my dog diagnosed… 😉
In fact, vets have considered the possibility of autism like symptoms in dogs since 1966!!
The 2015 study examined tail chasing behaviours in bull terriers in addition to running DNA analysis. These researchers found that tail chasing was associated with trance-like behaviour and random outbursts of aggression in these dogs. In addition to this, tail chasing was more common in males than females- just like human ASD’s. This group also suggested that the physical features of these bull terriers (long face, high-arched palate, and large ears) could be indicative of Fragile X Syndrome- a genetic condition where 15-60% of this population are additionally diagnosed with autism.
This study is not definitive, but it does open us up to the possibility that autism may naturally exist in the animal kingdom.
As autism can be difficult enough to diagnose in humans, you never know- other animals could quite possibly have autism, we’ve just never considered it! 🙂