Han Zhoudao: Okay.

Then they were pulled into the group.

Han Zhou core fan base (233)

Han Zhou's fan sister: Oh my God, Boss Han is in!

Han Zhou Fan Brother: Welcome, welcome, warm welcome.

Sister Han Zhoufan: Welcome, welcome, warm welcome.

Han Zhou Fan Milk: Welcome, welcome, warm welcome.

A queue.

White Dolphin White Dolphin: Welcome, please help me take a look at [Picture][Picture][Picture]

(Baiji dolphin is Baiji dolphin, the same, two ways to write)

Baiji Dolphin Baiji Dolphin: This is what we found in the Wuhu River section.

Han Zhou glanced at it.

It's three very blurry photos.

It looks like a large white fish, with part of its back exposed to the water.

None of the details were taken. I can't see it clearly.

Apparently it was taken by a mobile phone. Not Huawei. Huawei's photos are still clear.

Happy Little Jumping Frog: I can't see this photo clearly, I can't be sure.

Happy Little Jumping Frog: I'm not a wildlife expert, so I recommend that you contact an expert for advice.

White porpoise White porpoise: I'm an expert. I'm not sure either. It's really too blurry. However, our team all felt that there was a high probability that it was a wild baiji dolphin. Because there are few big fish so white in the Yangtze River. The finless porpoise is darker than the white porpoise, and the black is obvious, and it is impossible to judge wrong, unless it is an albino species.

Happy Little Jumping Frog: Come on. If it's really a wild baiji dolphin that you have found its traces, it will be a great joy and big news.

Baiji Dolphin Baiji Dolphin: Yes, Baiji Dolphin is known as the "Giant Panda in the Water", which has always affected the hearts of Chinese people. When I was a child, I decided to become a biologist after seeing the report "Looking for the Last White Dolphin".

Happy Little Jumping Frog: I have also read that report, and I am deeply touched.

"Looking for the Last Baiji Dolphin" is a feature report published by Sanlian Life Weekly in 2006.

On November 6, 2006, an expedition team composed of more than 30 Chinese and foreign scientists set off from the Budweiser Beer Pier in Wuhan on two 480-horsepower ships to begin a one-and-a-half-month expedition to the Yangtze River Baiji Dolphin.

The expedition was co-led by the Wuhan Institute of Hydrobiology of the Chinese Academy of Sciences and the Swiss Baiji Dolphin Foundation, and invited experts from six countries, including China, Switzerland, the United Kingdom, the United States, Germany and RB. The main goal of the expedition was to find traces of the baiji dolphin, and if it did, the next step would be to implement ex situ conservation.

Experts generally believe that this will be the last hope for the baiji dolphin to survive on Earth.

However, it is a pity that this large-scale scientific expedition in history did not find a single baiji dolphin.

Pushing the timeline forward, according to statistics, at the end of the 80s of the last century, there were only about 400 baiji dolphins left.

In a large-scale scientific expedition in 1997, scientists found only 13 baiji dolphins in the Yangtze River.

In 2007, Chinese and foreign scientists announced that the baiji dolphin was functionally extinct.

The rate of this extinction is terrifying.

Why is the baiji dolphin extinct?

First of all, because of human activities, the Yangtze River water transport is becoming more and more prosperous.

The river is full of boats, and the propellers are spinning wildly.

The baiji dolphin mainly relies on the emission of sonar to receive signals to identify objects.

There are too many boats in the Yangtze River Basin, and the sound of the motor of the boat will alarm the Baiji dolphin, causing an increase in the number of accidental deaths of the Baiji dolphin.

According to statistics, during 1973~1985, a total of 59 people died accidentally, of which 29 were killed by fish with rolling hooks or other fishing gear, accounting for 48.8%, 11 were killed by blasting operations in the river, accounting for 18.6%, 12 were killed by ship propellers, accounting for 20%, 6 died by stranding, accounting for 10%, and 1 head accidentally entered the sluice, accounting for 1.6%.

According to statistics, one-third of the Baiji dolphins that died unexpectedly in the lower reaches of the Yangtze River were killed by ship propellers.

The baiji dolphin is very large, larger than the finless porpoise, with a maximum body length of 253 cm for female adults and 229 cm for male adults, and is easily hit by propellers and killed by boats.

There is no zebra crossing in the river.

Only the ships are rampant.

Also, fishing in the waters was not strictly regulated in the past. Some lawbreakers use a large number of harmful fishing methods such as exploding fish, poisoning fish, and electric fish, which makes the survival of Baiji dolphin even worse.

Electric fish and fried fish are really the worst crimes. Sin is not punishable.

Poor white porpoise.

At the same time, the baiji dolphin itself is also an animal that is not very fecund. Their growth cycle is longer, the mother dolphin generally reaches sexual maturity at the age of 6, and only reproduces once every two years, and each litter is basically 1 litter, according to research, the pregnancy rate of the baiji dolphin is generally only 30%, and the natural reproduction rate is very low.

This is also the reason why the baiji dolphin is analogous to the "giant panda in the water".

I don't like to have children.

The giant pandas in captivity are already warm, but they still don't want to. Breeder help is often required...... Or artificial insemination in order to reproduce smoothly.

This is evident from this.

The good things in the world are not strong, and the colored clouds are easy to scatter and the glass is brittle.

Good things are always fragile.

Happy Little Jumping Frog: Actually, even if you find a wild baiji dolphin, it will be difficult for this group to grow up again and live freely in the wild.

Happy Little Jumping Frog: The extinction of the wild baiji dolphin is a functional extinction. The so-called functional extinction has two meanings: one is that the population is scarce, the function is lost, and the impact on the ecological environment is small, and the other is that the population declines to the point that the need for population reproduction cannot be guaranteed, that is, the population reproduction function cannot be realized.

White porpoise White porpoise: yes. However, it would be good if some wild individuals could be found, at least to get public attention again and arouse people's awareness of the protection of natural animals.

Baiji Dolphin Baiji Dolphin: At the same time, artificial sperm extraction and artificial conception of live Baiji dolphin, using the finless porpoise as the mother, also have a certain hope of helping this population recover.

Happy Little Jumping Frog: Yes.

At this time, a message suddenly popped up on Han Zhou's treasure app.

"A new treasure map has been generated, check it out. ”