Mammals:
* Owls: Have huge eyes, especially compared to their head size, for excellent night vision.
* Tarsiers: Have the largest eyes relative to their body size of any mammal.
* Cats: Have large eyes that allow them to see well in low light.
* Deer: Large, forward-facing eyes provide them with excellent depth perception.
Birds:
* Owls: (See above)
* Hawks: Sharp, large eyes help them spot prey from a distance.
* Eagles: (See above)
* Kiwis: Their eyes are relatively small, but for their small body, they are quite large.
Fish:
* Deep-sea fish: Many deep-sea fish have enormous eyes to capture any available light in the dark depths.
Reptiles:
* Geckos: Some geckos have eyes that can be very large, and many are adapted for seeing in the dark.
Amphibians:
* Frogs: Some frog species have large eyes that help them detect movement and find prey.
Insects:
* Dragonflies: Have large, compound eyes that allow them to see almost all around them.
* Moths: Some moths have very large, compound eyes that help them navigate at night.
Other:
* Octopus: Their eyes are incredibly complex and large for their body size.
It's important to note: Eye size is related to an animal's lifestyle and habitat. Animals that need to see well in low light or need to spot prey from a distance often have larger eyes.