regurgitation

worker bees consume pollen and nectar.
digest it.
vomit it out.
n form royal jelly.
4 queen t be larvaes.

parent birds find food.
store it.
regurgitate.
n feed their young.

male emperor penguins vomit curd like substance from their oesophagus.
rich in protein n nutrients.
t feed their babies.

any1 wonders hw kissing came about?

yup.
mothers chewing d food
vomitin it t feed their babies.

evolution brought us kissing.
who knows what kissing will evolve into in d future?