There are two cat-related assertions that are most likely to be supported by science:
This assertion is supported by the structure of a cat's paws, which are retractable. In order to protect their claws and preserve their sharpness, cats have a specific mechanism that allows them to retract their claws when not in use.
Cats have an acute sense of smell: This assertion is supported by research that demonstrates cats have an exceptionally developed sense of smell, which they utilize to find food and navigate their environment.
One of the most trustworthy and well-established claims regarding cats, these assertions have been the subject of much research and are backed by scientific data.