Nimrod is mentioned in the Bible in Genesis 10:9-10- He was a mighty hunter before the LORD: wherefore it is said, Even as Nimrod the mighty hunter before the LORD. And the beginning of his kingdom was Babel, and Erech, and Accad, and Calneh, in the land of Shinar.
So what does that have to do with bunnies and eggs? Babylon has a fable of a mystic egg that fell from heaven and landed in the Euphrates River. This egg, of "wondrous" size, was rolled to the bank by the fish and hatched by doves. Out of the egg came Venus, or Astarte, a Syrian goddess. She ws the reincarnation of Semiramis, who was considered too beautiful to go to heaven when she died. In the Anglo Saxon legend, the godess Eastre was symbolized by a hare and is worshipped as the goddess of spring and fertility.
This is no new thing. In fact, the Bible says in Jeremiah 7:18- The children gather wood, and the fathers kindle the fire, and the women knead their dough, to make cakes to the queen of heaven, and to pour out drink offerings unto other gods, that they may provoke me to anger.
These became known as "hot cross buns".
Ezekiel 8:14- Then he brought me to the door of the gate of the LORD'S house which was toward the north; and, behold, there sat women weeping for Tammuz.
Weeping because he died while hunting at the age of 40.
Easter is mentioned in the King James Bible. Many people say that it is an incorrect translation. Here is Dr. Kent Hovind explaining in a simple way why it is translated correctly.