I go with real world averages...Although I do vary that some depending on species.
Examples: A 7 year old tiger cub might be slightly over 4 foot high. A 7 year old wolf cub might be almost 4 foot. A 7 year old fox fennic cub might be a little over 3 feet. A 7 year old squirrel cub might be 2 and a half foot. A 7 year old mouse cub might be right at 2 foot high or slightly under.
I go with real world averages...Although I do vary that some depending on species. Examples: A 7 ye