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What spring cue affects a cat's breeding rhythm?

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Answer: Longer daylight

More flower scent — Wrong. New plant smells may draw a cat's attention or prompt extra sniffing, but flower scent is not the main switch for feline breeding rhythm. Smell can change what a cat investigates; day length is the stronger reproductive cue.

Longer daylight ✓ — Correct! Cats are often described as long-day breeders: as daylight lengthens, an intact female's hormonal cycle can be more likely to shift toward estrus. The key change is the light schedule, not the mood of the season.

The calendar page turning to March — Wrong. March is a human calendar label, not a cue a cat's body reads directly. A cat responds to physical signals such as day length and local conditions, so geography, indoor lighting, and climate can shift the timing.

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