Basic Definition -Tiger Sharks are a large gray or brown shark -They also are a strong bodied requiem shark -Can be dangerous to humans especially in warm waters. Link: Webster.com
Relevance to The Raft -The Tiger Shark appears on page 160-161 -There she first finds the Tiger Shark -The Tiger Shark also appears on 175-180 -Where she the Tiger Shark stops Robie from getting the suit
Important Facts -They are 10-14 feet long and weighs 850-1400 pounds -They mostly live in Melanesia, Micronesia and Polynesia -They also spend time in deep water but come to shallow water for food -Tiger Shark liver has a lot of vitamin A meaning they might be endangered soon Link: SoftSchools.com
Why did the author chose to include a Tiger Shark in The Raft? Because the Tiger Shark or monster is in The Raft to scare Robie and stop her from getting the suit. Luckily Robie survives and but the Tiger Shark eats the suit that could rescue her. In conclusion, the Tiger Shark causes external conflict for Robie.