The Topi is an African antelope. It’s hard to even google this animal, because Google keeps changing the word to “topic.”

Topi (that’s the singular and plural)  are strange. Their females are fecund only one day a year, which obviously makes that day a little frantic for the males. The males have to corner the females to mate, which is not always easy. Some of the males cheat by lying—there’s no other word for it.

All year long, male Topi warn the herd  of approaching predators by making a special, loud grunting sound that is immediately heard by all as “Watch out! A lion (or facsimile) is nearby!” When Topi hear the sound, they freeze and look  for the potential attacker.

Researchers have found that some male Topi win the mating sweepstakes by unfairly using the sound that 364 days a year means, no kidding, “We’re in trouble!” It has to be believed, for the safety and survival of the herd, and is. One day a year, however, on mating day, there are male Topi who falsely use the warning grunt to freeze shy females in their tracks, and while the girls are searching the area for something with sharp teeth, they get a big surprise from behind. These deceptive males sneak up on them, and it’s wham, bam, thank you, Miss Topi!

Topi males that use this subterfuge, researchers find, mate three times as often as those who play by the rules. Males who don’t cheat, and who don’t risk the effectiveness of a vital species defense device by playing “The Horny Topi Who Cried ‘Lion,” are less likely to pass along their genetic material.

The Topi are encouraging an unethical culture. It works for a few Topi now, but if each generation has more cheaters, will the Topi warning grunt become ineffective the rest of the year? I doubt that Topi have calendars.

If Topi were human beings, would the fake grunt tactic be unethical? Immoral?

Discuss.

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Spark: Nature (PBS)