come-on-baby
Explanation
The Joke
The comic shows an intimate bedroom scene where a shirtless man is speaking to a partner (shown in silhouette). The man says, "Baby, we don't need that! If we're worried about population growth, we can just introduce a predator to the environment." The caption below reads: "I've had few takers for my ecological approach to birth control."
The joke is that the man is conflating two completely different domains: personal contraception and wildlife population management. In ecology, introducing a predator is a standard method for controlling overpopulation of a species (such as reintroducing wolves to control deer populations). The man is absurdly applying this macro-level ecological strategy to the micro-level personal decision of whether to use birth control during sex.
The Humor
The comedy comes from the inappropriate application of scientific reasoning to an intimate situation. The man is technically not wrong that predators control population growth in ecosystems, but suggesting this as an alternative to contraception is both hilariously impractical and deeply unsettling -- it implies releasing dangerous animals on humans. The caption's deadpan understatement ("I've had few takers") adds to the humor by framing this horrifying proposal as merely an unpopular lifestyle choice rather than an insane suggestion.