Mastodons are extinct,
Yes.
True
these dogs are mostly active in the day time
About Midday are when they are active.
day light
Mastodons were found throughout North and South America.
morning
They can be active any time of day, but generally they are nocturnal.
God made mastodons in 4000 BC.
at night
Mastodons were herbivores, so they ate things like leaves and fruit.
no, because they need time to rest and sleep at night.