it depends because some three month old brains are smarter then others. so it can be anything
100kilograms
22lbs
an 8 year old's brain is about from 5lbs and 2oz to 5lbs and 6oz
More than an 8 month old dwarf rabbit.
my 6 month old mal weighs 24kg (52.8lb)
My 14 month old weighs 25 1bs. He was 8lbs 11 ozs at birth
a 5 month old cub weights at least 150
7 pounds
5-6 pounds.
16 pounds.
depends on breed
She should weigh about 25 lbs.