"Its 4 legs have 2 hoofed toes while its tail-leg has 3 hooffed toes"
Doesn't it make more sense to write it as "four", "two", and "three"? There's also a typo in "hoofed".
What do the males do before the eggs have hatched? Their role is only mentioned after the eggs have hatched.
I agree that "deep, bleating calls" doesn't really make sense, unless it has special vocal adaptations, like certain toads. You could say its voice is surprisingly deep for its size, though.
" crash down" "Crashing down" is grammatically correct.
"This back foot helps them leap away from predators. While the other legs help in its quick bounding." These should be merged with a comma. "However very few reach breeding age." This needs a comma after "however".