General Knowledge Quiz for Tuesday, 29 October 2013
A new general knowledge quiz is available every day. Try today's quiz or work through our archive of daily and themed quizzes.
Question 1: What is unusual about the skeletons of sharks, skates and rays?
A
B
They have 20 vestigial "toe bones"
The spine is extra flexible
C
They have 50% more bones than other fish
D
They have no bones