Classes:
* Whale Shark: Fish (Class: Actinopterygii)
* Eagle: Birds (Class: Aves)
* Pigeon: Birds (Class: Aves)
* Salmon: Fish (Class: Actinopterygii)
* Bear: Mammals (Class: Mammalia)
* Salamander: Amphibians (Class: Amphibia)
* Lizard: Reptiles (Class: Reptilia)
* Frog: Amphibians (Class: Amphibia)
* Alligator: Reptiles (Class: Reptilia)
Orders:
* Whale Shark: Order: Orectolobiformes
* Eagle: Order: Accipitriformes
* Pigeon: Order: Columbiformes
* Salmon: Order: Salmoniformes
* Bear: Order: Carnivora
* Salamander: Order: Caudata
* Lizard: Order: Squamata (specifically, suborder Lacertilia)
* Frog: Order: Anura
* Alligator: Order: Crocodilia
Further Grouping:
* Whale Shark: Is the largest fish species
* Eagle, Pigeon: Birds of flight
* Salmon: Anadromous fish (migrates between fresh and salt water)
* Bear, Salamander, Lizard, Frog, Alligator: Have backbones (vertebrates)
It's important to note that while these animals share some characteristics, their classification into specific classes and orders reflects their unique evolutionary history and adaptations.