Crossword Puzzle AnimalsOnline version Conceptos básicos del tema by David Núñez Acosta 1 They have moist slimy skin, lay eggs in water and are cold blooded 2 3 They have fur or hair, feed young on milk and are warm blooded 4 They have dry scaly skin, lay eggs on dry land and are cold blooded 5 They have feathers, wings, beak, lay eggs and are warm blooded 6 7 8 They have scales on their body, have gills for breathing and are cold blooded 9 9 3 6 7 8