Animals and their young ones

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Across
  1. 1. young one of tiger
  2. 5. a beautiful insect
  3. 7. process by which new living beings are produced
  4. 8. the protein part of an egg
Down
  1. 1. larval stage of butterfly
  2. 2. this bird lays the largest eggs
  3. 3. the embryo receives it's nutrition from this
  4. 4. young one of a frog
  5. 5. they reproduce by laying eggs
  6. 6. mammal that lays eggs