Can you solve the frog riddle?

collections: Ted-Ed, Riddles, Mathematics
Posted 11 January 2018
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Duration of the video: 4 Min. 7 sec.
You’re stranded in a rainforest, and you’ve eaten a poisonous mushroom. To save your life, you need an antidote excreted by a certain species of frog. Unfortunately, only the female frog produces the antidote. The male and female look identical, but the male frog has a distinctive croak.
Recommended words
to avoid - 避ける
certain - 一定
a clearing - 交換
to collapse - 崩れる
common - コモン
direction - 方向
equal - 等しい
except that - それ以外で
to excrete - 排泄する
a female - 女性
huge - 巨大
identical - 同じ
to increase - 増やす
independent - 独立の
individual - 個々
likely - ありそうな
to lose - 失う
a male - 男性
particular - 特定の
poisonous - 有毒
possibility - 蓋然性
probability - 確率
a rainforest - 雨林
species - 種
to startle - 脅かす
a stump - 切り株
survival - サバイバル
unfortunately - 生憎