Pets

Cat years to human years chart: the first year is about 15, the second 24, then add 4 a year. Why multiplying by 7 is wrong and what it means for care.

The 'double the 8-week weight' rule is a rough guess. How vets predict adult dog size from a puppy growth curve, worked out with real numbers.

Dog food bag charts assume every dog at that weight needs the same calories. Here's the RER formula vets actually use, worked out with real numbers.