Not neccessarilly (some females have a little colour and dot like markings) although it is a bit of an indication that the fish may be a male.
Many male guppies have 'black spots' but if by "black spot" you mean "gravid spot" then no, a male guppy can not be 'gravid' because gravid is the equivalent of "pregnant" and male guppies can not get pregnant.
The name Guppy means a wise little fish
If the one chasing has a pointed fin underneath his belly, it's a male. If the fin is rounded, it's a female. If it's male and female they are probably mating/breeding.
a male baby = tinok (×ª×™× ×•×§) a female baby = tinoket (×ª×™× ×•×§×ª)
Maybe the guppy has abhorted an undeveloped ovum. Guppies are livebearers so should not lay eggs.
It is quite simple. It means that a woman is giving birth to a healthy male baby.
No . Periods mean you can have the choice one day to conceive. But first you must make physical contact with a male and get male sperm into your falopin tubes.
No it means absolutely nothing. Guppies are allowed to mix and breed so freely it is almost impossible to get a properly well bred fish any more. They are mostly all cross bred mongrels and there is no telling what their parentage is.
That is quite common. Don't worry about it. A gravid spot does not have to be dark or black. Your guppy is perfectly normal.
A male and a female become one when the egg and the sperm connect and that forms a baby
if you mean name, it is still a penguin. Baby female penguins (and male) are called 'chicks'.
"EL" is a singular male article, analogous to the English word, "THE." "NIÑO" is the Spanish word for "male infant" - "baby boy."