Q.How do you distinguish a male frog from a female frog?

The male frog has vocal sacs and nuptial (copulatory) pads on its forelimbs; the female has neither and has a swollen egg-filled abdomen.

Distinguishing a male frog from a female frog:

Male frog:

• Possesses a pair of VOCAL SACS on the sides of the throat, which resonate to produce loud croaking sounds to attract females.
• Bears a copulatory pad (nuptial pad) - a swollen, rough thumb pad - on the first digit of each forelimb, which helps in gripping the female during amplexus (mating).
• The body is generally smaller.

Female frog:

• Has NO vocal sacs and NO copulatory pads. …