How to Hard-Boil an Egg. Hard-boiling eggs is almost as easy as boiling water, if you know the right process: Cooking eggs too long or too vigorously can result in cracked shells, tough whites, and green-gray, sulfuric-smelling yolks.
Although all flowering plants rely on pollination for reproduction, there is a variation in how plants pollinate. There are two types of pollination called self-pollination and cross-pollination. Self-pollination is the more basic type of pollination because it only involves one flower.
The pollination of plants by bats is called chiropterophily. Plants pollinated by bats often have pale nocturnal flowers (in contrast, bees are mostly attracted to bright, daytime flowers). These flowers are often large and bell shaped, and some bats have evolved specifically to reach the nectar at the bottom of them.