It sounds like the buck moth. They are black with yellow dots all along their body. The dots are in twos down their back.
Spotted tussock moth caterpillar
A large fuzzy green caterpillar with yellow horns is a Imperial Moth caterpillar. These will go back into the tree if left alone.
Yellow big bird
a dog
They turn into monarch butterflies
it is most likely to be a monarch or something very similar
The Jamba Ramba Caterpillar is a fuzzy yellow caterpillar with a black head and black tufts that look like spikes.
The yellow bear caterpillar eventually turns into the Virginia tiger moth. The moth is not poisonous, however some people have allergic reactions to it's body bristles.
milkweed
The American Dagger Moth's caterpillar is fuzzy and yellow with what looks like black spikes. But a closer look shows it is just fuzz.
the fuzzy brown caterpillar goes through a metamorphosis in its cocoon of human flesh to become John Carpentar. In our century there has been only one hatching of John Carpentar, for the obvious reason that everyone knows when you see a big brown fuzzy you must kill it immediatley...
Yellow caterpillars will eat any type of fruit. The size of the fruit does not matter. The caterpillar likes to eat sweet fruits.