Why do our dogs and cats bring us dead animals?

Golden retriever walking around outside with a stuffed toy.

So is it a gift, are they showing off, or is something else going on? (Samantha Fortney via Unsplash)

The Secret Lives of Pigs: Unique Insights (Part 1)

Curious pig leaning on the fence of its pen to see over the top.

Pigs use a range of oinks, snuffles, grunts, and squeals to communicate which scientists have now 'translated'. (Image: Panco971 via Dreamstime)