No, both male and female goldfish's tails are the same length. The sex of a goldfish does not determine how long a goldfish's tail will be. Usually the parents and what type of variety of goldfish the fish is will.
if they are males, yes ,if they are male and female no.
the female lives longer
males have longer skinnier tales and females have short and stubby tails. it can be hard to tell with baby turtles.
male
No, female sperm do not have a longer lifespan compared to male sperm.
female
Yes, Male cougars live much longer than female cougars, usually 2 to 3 years longer.
i do
male killer whale
Female giraffes live longer than males.
No, there are three ways to differentiate male from female but you cannot do this with baby ones, only when they are mature, also it helps if you have a male and female to compare. Firstly the tail of the male is a lot longer than the female. Secondly the cloaca opening on the female near enough touches its shell whereas on the male it is farther out. And thirdly the claws of the male are a lot longer than the female.
The female will push out many eggs and the male will swim between the tail and catch theeggs to fetalise them. when fish lay eggs its best to have plants for the eggs to hang on to