No.
GLBT groups in the United States do not use a dolphin as a gay symbol like they do the rainbow or a purple rhino. This may be used colloquially (within your area), but it does not have near the recognition of these other symbols. However, as dolphins are almost all bisexual, it would be an excellent symbol for bisexual to use.
look it up on google pixs it looks like 2 circles that connect at the protuding stem
Sunflower is bisexual
Bisexual
No he is not bisexual.
When you are bisexual, you do the exact same things as a non-bisexual person.
She is definitely not bisexual.
Stevie is not bisexual.
sexual orientation cannot be changed. If someone is bisexual, they are bisexual for life.
Nobody turns bisexual. If a woman is bisexual, she has always been bisexual.
If you are not already bisexual, your chances of becoming bisexual are about 0%.