Study Uncovers Crane Vocal Clues to Differentiate Genders

Scientists discovered a way to tell male and female sarus cranes apart by listening to their calls.

These birds look identical, so it was hard to know their genders.

The study found that male cranes have shorter, coarser calls, while females have longer, shriller ones.

When the cranes sing together, it sounds like one call, but the differences are there.

This will help scientists protect the cranes by better understanding how many males and females there are.

Also, in some cultures, these calls are seen as a sign of good luck for marriages.