D. M Souza

In the ocean, a box jellyfish dangles tentacles covered with venom-filled stingers. The jellyfish uses its stingers to kill its prey. But its venom can also kill humans within minutes. The brightly colored poison dart frog is deadly to humans too. Just a speck of its poison can kill a person. These two creatures are among the most venomous and poisonous animals in the world. How do animals use their poisons? When are humans in danger?

Describes the physical characteristics, behavior, and life cycles of various spiders and other arachnids, including the crab spider, wolf spider, trap door spider, and whipscorpion.

Describes the life cycles and habits of various insects found in the house, including the termite, housefly, and cockroach.

Discusses the origins, characteristics, and lore of the Northern and Southern Lights known as auroras.

Provides information about the physical characteristics and habits of the striped, spotted, and hog-nosed skunk.

Describes the physical characteristics, habitat, and life cycle of lizards.

Facts about ordinary waves precede information about the causes of the huge waves known as tsunamis and the destruction they bring.

Discusses how sunlight can be used to propel spacecraft equipped with sails to reach destinations now beyond the reach of conventional craft.