Thursday, May 2, 2019 - Years ago, we believed that we weren’t animals and that animals were here solely for our use. Indeed, a cow was just a walking burger, steak of Sunday roast, keeping itself fresh and tasty, ready for when we were hungry.

Luckily, for their sake, things have progressed significantly since then, and now we recognize that animals (including our “superior” human selves in that category) can experience emotions, from more simple ones such as happiness and sadness to more complex ones such as empathy, jealousy, and grief. Animal sentience is defined as the ability to feel, perceive, and experience subjectively. In other words, it’s about emotions and feelings and in some respects, having an awareness that “you are you.”

In fact, the scientific evidence for animals being sentient is vast — so clear that three scientists read 2,500 papers studying sentience in non-human animals and concluded confidently that sentience does indeed exist.

If you saw Blue Planet II, for example, you’ll have seen the footage of a pilot whale carrying around her dead calf. For most humans, this clearly demonstrates a form of grieving, particularly given the behavior changes in the wider family pod.

Studies have shown that sheep are able to recognize the faces of their sheep friends even after being separated for two years. Elephants from strong family groups with immense memories cry when they are hurt (both physically and emotionally). Capuchin monkeys know when they are receiving unequal pay (grapes vs. cucumber), and Macaques develop individual cultures, particularly when it comes to how one should wash a potato.

But it isn’t just from watching their behavior that we can say animals are sentient. When we examine the brains of species (and indeed individuals), we can draw parallels from what we know about human brains and start to make assumptions.

Emotions mainly stem from a part of our brain called the “limbic system.” Our limbic system is relatively large, and indeed humans are a very emotive species. So when we come across a brain that has a smaller limbic system than ours, we assume it feels fewer emotions. But, and here’s the big but, when a limbic system is comparatively much bigger than ours, we don’t assume it feels more emotions than us. Most likely because we cannot imagine something that we do not feel or even know about.

Arguably, would these evolve if they weren’t used for the same (or at least similar) purposes?

One potential reason why we don’t like thinking too much about animal sentience is because we like to kill animals. Some to eat and some quite simply because we do not like them. Look at those poor spiders in autumn, coming in to find some shelter, only to meet their end being smacked by a slipper-wielding human. We also turn a blind eye to systematic cruelty on a mass scale to ensure we save some money on meat at the supermarket. It’s far easier to pretend these animals don’t have feelings or emotions so that we can enjoy a cheap dinner without the emotion of guilt creeping in.

So is animal sentience a big deal? Yes, it is. We need to ensure we include it everywhere to safeguard the welfare of all animals, not just our pets. We live in a world where a lady putting a cat in a bin causes immense public shaming, yet we’ll pop down to the nearest fast food outlet and eat meat that has lived the most abhorrent life ever without thinking twice. It really is time that we spent more time thinking about the thinking beings around us.

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