Classify the following animals based on the number of chambers in their heart: Rohu,Scoliodon,Frog,Salamander,Flying lizard,King Cobra,Crocodile,Ostrich,Pigeon,Bat,Whale.

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(N/A) The classification based on the number of heart chambers is as follows:
$1$. $2$-chambered heart: Rohu,Scoliodon.
$2$. $3$-chambered heart: Frog,Salamander,Flying lizard,King Cobra.
$3$. $4$-chambered heart: Crocodile,Ostrich,Pigeon,Bat,Whale.

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