The appearance of a Brazilian fish has sent a chill through summertime swimmers in Sweden and Denmark. The alarming fish is the pacu, a cousin of the piranha, which has large teeth and a reputation for biting men's testicles.
Noun
hard bonelike structures in the jaws of a venomous snake used to inject its poison
The Gaboon viper is found in the rainforests and savannas of sub-Saharan Africa. The world's heaviest viper snake, it lies in waiting, ready to sink all 2.2 inches (5.6 cm) of its fangs into its prey.
Adjective
characterized by high-spirited, sometimes aggressive, behavior
These feisty dogs often bond to only one or two persons in a household. They can also be snobbish when it comes to other kinds of dogs, as the Chihuahua is a clannish breed.
While a fearsome reputation precedes them, in reality the tarantula's bite is only as harmful as it looks. What venom they may inject is weaker than that of the average bee.
The megalodon is an extinct megatoothed shark that existed in prehistoric times and may have been the largest and most powerful macro-predatory fish in vertebrate history.
The Gaboon viper is found in the rainforests and savannas of sub-Saharan Africa. The world's heaviest viper snake, it lies in waiting, ready to sink all 2.2 inches (5.6 cm) of its fangs into its prey.
Over their long lives, an alligator may regenerate something on the order of 4,000 teeth. So a team of researchers from the U.S., China and Taiwan performed a detailed investigation of alligator teeth to learn their secret.
Verb
use force to cause something to go into something
The Gaboon viper is found in the rainforests and savannas of sub-Saharan Africa. The world's heaviest viper snake, it lies in waiting, ready to sink all 2.2 inches (5.6 cm) of its fangs into its prey.