Simplify the following text for a Grade 7 native English-speaking person.
Original: Pilot whales are classified into two species , the long-finned pilot whale ( Globicephala melas ) and the short-finned pilot whale ( Globicephala macrorhynchus ) .
Simplified: Pilot whales are two types of oceanic dolphins , whose scientific name is Globicephala . The two types of pilot whales are the Long-finned Pilot Whale and the Short-finned Pilot Whale .