A shark has thousands of teeth arranged in five rows that continuously replace themselves when lost. They can lose around 2000 teeth in a few years. When hungry, a shark may attack and crush boats, life rafts, or people that come into its path due to its crushing bite force.

1. Uzma Tahir

2. Season of mists and mellow fruitfulness
Close bosom-friend of the maturing sun
Conspiring with him how to load and bless
With fruit the vines that round the thatch-eaves
run;
To bend with apples the moss'd cottage-trees,
And fill all fruit with ripeness to the core;
To swell the gourd, and plump the hazel shells
With a sweet kernel; to set budding more,
And still more, later flowers for the bees,
Until they think warm days will never cease,
For Summer has o'er-brimm'd their clammy
cells.

7.  Look into the mouth of a shark, if you dare,
and you will see thousands of teeth in five
rows along the jaws. And did you know that
when a shark loses a front tooth another
moves forward to take its place? A shark can
loose about 2000 teeth in a few year. When a
shark is hungry , it may attack anything that
comes in its way---crushing a small boat , a
life raft or even a person!