American Bullfrog: a two-minute wildlife lesson

Frogs · day 1 of 7

Five facts

1. The bullfrog is a hungry ambush hunter. Rodents, small snakes, crayfish, small birds, scorpions and even tarantulas have turned up in its stomach.
2. People have brought bullfrogs to more than 40 countries, where they now live wild far from their North American home.
3. Bullfrogs measure about 9 to 15 cm from snout to vent, but some have been recorded at 20 cm and 800 g.
4. A single female can lay 1,000 to 40,000 eggs, which hatch in just 3-5 days.
5. Bullfrogs may live 8 to 10 years in the wild, and one lived almost 16 years in captivity.

The quiz

1. Which of these has been found in bullfrog stomachs?

• Eagles
• Sharks
• Tarantulas (correct)
• Snow geese

Their stomachs have held scorpions and tarantulas.

2. In how many countries do wild bullfrogs now live?

• More than 40 (correct)
• Only 4
• About 12
• Fewer than 10

Wild bullfrogs now live in more than 40 countries.

3. How long is a bullfrog from snout to vent, typically?

• 2 to 4 cm
• 30 to 40 cm
• 50 to 60 cm
• 9 to 15 cm (correct)

Bullfrogs measure about 9 to 15 cm from snout to vent.

4. How long do bullfrog eggs take to hatch?

• 30-50 days
• 3-5 days (correct)
• 2-3 weeks
• 10-12 days

The eggs hatch in just 3-5 days.

5. How long can a bullfrog live in the wild?

• About a year
• Three to four years
• 8 to 10 years (correct)
• About 30 years

In the wild, bullfrogs may live 8 to 10 years.

More about the American Bullfrog

Same week

All lessons

Nature documentaries