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The tiniest cat on record is Mr. Pebbles, a 2-year-old cat that weighed 3 lbs (1.3 k) and was 6.1 inches (15.5 cm) high.

unbelievable

Neutering a male cat will, in almost all cases, stop him from spraying (territorial marking), fighting with other males (at least over females), as well as lengthen his life and improve its quality.