1. Yoshies are dinosaurs that are in no way amphibians at any time in their life. Another thing on this subject is if you wacth the intro in Yoshi's Story it shows they are clearly born on land.
2. On to the topic of eggs.The "eggs" yohsies frequently lay are not real eggs, but instead unique "carrying cases"if you will for their solid waste(Dang I wish I could have skipped that).
3. The special skills aquired when a colored shell is eaten comes from special chemicals in both the specific colors of the shell and the yoshi's unique digestive juices mixing to form a simple color code:
4. Yoshies do infact sleep very often,and combined with their frequent feeding fuels their long-lasting energy.
5. Finnaly, the reason yoshies can eat spikes is because it merely has thick skin in it's throat.Extremely sharp or hot or large objects can indeed cause pain to a yoshi's throat.
From,
Raptar the genius velociraptor (imagine studios, tm)
