yes
Fish lay eggs.
no goldfish can not
Goldfish lay eggs when water temperatures and other conditions are right for them. They do not give birth to babies. Goldfish as well as many other fish species spawn in the spring.
No, silverfish do not give birth to live young. Instead, they lay eggs, typically in small clusters, which hatch into nymphs that resemble miniature adults. The nymphs undergo several molts before reaching maturity, gradually developing into fully grown silverfish.
No, goldfish reproduce using external fertilization; goldfish are never pregnant.
Dolphins are mammals and so they give birth to live babies.
Yes, unless the babies die before birth.
Well yeah. If I understand your question. They don't give birth to babies that are dead. I think they all give birth to babies in eggs
Polar bears are mammals and give live birth.
Goldfish do not 'give birth' they spawn as a group. There is no need to change anything after they have spawned other than to either move the eggs or the adult fish if you wish to raise of young.
Hippos are mammals and give birth to live babies.
yes they do give birth they give birth to twins but usally only one lives