Answer: Sea Turtle
Step-by-step explanation:
Sea turtles especially the green sea turtle Chelonia mydas is the most closely related to Dr Digger's creation having shell covering cavity covering the whole body except head and four limbs known as flippers which make them paddle along swiftly while swimming Thier mouth without teeth is shaped like a beak which makes them perfect herbivores which feed on mostly algae and grasses in the sea. Currently there are about 7 species of the sea turtle.