3 weeks with mum (then boys need to go in separate cage) u can keep all boys in same cage providing its large enough, to sex the hamsters easiest way is to sex them at exactly 1 week old, and again at 2 weeks old (paying attention to the nipples on their bellies (girls) those that don't have two long rows of nipples on their tummies are boys! It's easiest to sex them at exactly 14 days old (any later and fur starts growing and covering the nipples, any earlier and they aren't as visible yet! ) as for sexing at 1 week old u can see faint rows of raised "dots" which will later develop into those nipples, if u take photos of the babies and note which are GIRLS, at 2 weeks old, then when they are 3 weeks old all u need to do is refer to the photos and just separate!
1 inch long.
Six weeks.
about an inch or less i think
about 1 week
about 5 months
Baby Syrian hamsters are adults at age 5 months!
3 to 4 weeks.
1 and a half years old
I usaually stick them in the same cage over night to make it faster!
Six to eight weeks.
3 months
baby mantis when they emerge from the egg will be a half inch long.