No, no you can't.
A few days
A camel can live upto 3 days without eating.
3 months without eating food and 1 month without drinking water.
THEY CAN LIVE 10 days without eating as long as they can drink water :P
40 days
Only a month.
Only a month.
a crocodile
1 month
3 months
54 days
They can survive on other plants, yes.