Dogs tend to 'wolf down' their food for a few reasons

Instincts from the Wild: In the wild, dogs' ancestors needed to eat quickly to avoid having their food stolen by other animals. This survival instinct has carried over to domestic dogs, even though they usually don’t have competition for their meals.

Hunger and Excitement: Dogs may eat quickly because they are very hungry or excited about their food. If they’ve been waiting for their meal, they might dive in as soon as it’s available.

Feeding Schedule: If a dog is fed at specific times, they might anticipate their meals and eat quickly to satisfy their hunger. This can become a habit.

Breed Tendencies: Some breeds are naturally more food-driven and might be more prone to eating quickly. This is common in breeds that have historically been working dogs, where they needed to fuel up quickly.

Competition or Anxiety: If a dog has experienced competition for food in the past or if there’s another pet in the household, they may eat fast out of a sense of urgency or anxiety, even if there’s no real threat.