2 years
by protecting the female dolphins...
Female dolphins usually have only one dolphin a year.
they are both dolphins.
Only female dolphins give birth. Although male Bottle-Nosed Dolphins will have sex with other male Bottle-Nosed Dolphins.
the female is called: a cow the male is called: a bull
cow
The length of a dolphin is just like humans, it varies.
there are at least 9,000,000,000,000,000,000,000 female dolphins in the whole world
Dolphins are male and female and it requires one of each to create offspring.
A female bottlenose dolphin (there is no special phrasing for a female bottlenose dolphin)
after her season/period.
Penises.