Google search have just added 3D life-sided models of animals and it's amazing
If you’ve got an AR-enabled phone, you can now bring select animals right into your space for a safari (or safe snuggle) with Search. Just open your browser and search (I used Safari on iPhone).
The animated 3D model also makes noises and you can increase/decrease the scale of the animal or you can drag the animal on your phone screen. Having a 3D model of the animal in the real world gives a clear idea of its size.