The dodo is a flightless bird, which is found only in Mauritius.

With a fat body and a huge mouth.

/kloc-In the late 6th century, European colonists came to Mauritius.

Dodo, which can't fly or run fast, soon became the main food source for Europeans to come to the island.

People began to kill poor dodos in large numbers, sometimes thousands to tens of thousands every day.

Due to over-hunting, the dodo on the island soon became less and less.

168 1 year, after the last dodo was brutally killed, this kind of thing never appeared on the earth again, except in the pictures of the museum.

2.manatees

Manatee is a large aquatic herbivorous mammal.

It is fat and slow-moving, its forelimbs are like meat, and its hind limbs have completely disappeared.

It mainly eats plants in shallow seas and bays and slow-moving rivers.

In the early days, manatees were not only fresh and delicious, but also made of wear-resistant leather. Even the ribs could be used as a substitute for ivory, so they were all treasures.

This is why it was killed by a large number of humans.

From 65438 to 0973, the United States and other North American and Latin American countries successively listed them on the list of endangered animals and protected them.

However, manatees are still decreasing year by year, and in addition to manual poaching, unintentional killing is also very serious.

For example, on the Florida coast of the United States, due to water pollution, red tides occur every year and manatees die every year.

Last year, 304 people died, exceeding the record of 206 deaths per year set by 1990.

It is difficult for us to see such delicious food on the menu now.

3.TheGreatAuk

Puffin is a kind of flightless waterfowl. They used to live widely on various islands in the Atlantic Ocean. They are similar to dodos in size and appearance, but much smarter than dodos.

But even so, it cannot escape the indiscriminate killing of human beings.

/kloc-At the beginning of the 6th century, with the entry of European colonists, the flightless GreatAuk began the same fate as DoDo.

By the early 1940s of 18, in just a few decades, due to over-hunting, the small number of GreatAuk soon became less.

1844, great auk was finally wiped out by human beings.

4.pigeons

It is a pigeon that lives in North America all the year round. Every season, thousands of pigeons begin to migrate in large areas.

When Europeans first set foot on the North American continent, there were more than 5 billion pigeons here.

However, due to uncontrolled hunting, pigeons plummeted from billions to extinction in less than 100 years.

At 1900, the wild pigeon was finally killed by a boy of 14.

Since then, no one has ever seen this wild pigeon.

People have tried to restore the number of white pigeons by artificial breeding, but it has never been successful.

On the afternoon of September 19 14, 1, the last captive female pigeon named "Martha" died in Cincinnati Zoo, USA, representing that the pigeon disappeared from the earth.