Curious Kids: why do eggs have a yolk?

Yolks are a great source of vitamins, minerals, fats and proteins packaged up by the female animal for an embryo. Emily Nunell/The Conversation CC-NY-BD, CC BY Maggie J. Watson, Charles Sturt University Curious Kids is a series for children. If you have a question you’d like an expert to answer, send it to [email protected] You
Read more