Last week was the tail end of the National Day long vacation, and all of our friends ended the last legal holiday in 2015, and returned to the company to wind down and start preparing for the 7-day long vacation in the New Year. And since the National Day holiday to go out to play will certainly be blocked in the road, neither see the scenery nor eat delicious, so the question encyclopedia is also less - one. Then, I accidentally gave forget who asked the question, asked what (pick nose hole)

No encyclopedia content good to write, coupled with the weekend can finally take a day off, went to the Xianghu Lake, in the lake to read a book sunshine, pretend to be. The result is to see a pile of pink things on the lotus leaf poles and reed poles:

I am too familiar with this stuff - the eggs of the Fukushu snail, which I have raised on the island. I've raised them on the island, and they gave birth to lots and lots of little snails. I wanted to fry them for my friends to eat, but unfortunately, the news of parasitic infection in the capital broke out, so I had to give up.

Fukushou snail

Fukushou snail, bottle snail bottle snail genus, looks a little like our native snail, the size of about the same, but a wide range of food, fast-growing, adaptable, growth and reproduction is even more awesome. Fukushou snail hermaphrodite, but heterozygous reproduction. In other words, two snails stick their dicks into each other's bodies and start having sex. The whole process takes at least 4 hours! It is said that a snail has two generations a year, a **** can reproduce more than 300,000. My goodness, why I raised a year only gave birth to a nest, just more than 30. Fukushu snail originally distributed in the Amazon basin, and then biological invasion, in the south of the Yangtze River has become a bully in the field. The main harm is also his advantage: omnivorous, large amount of food. The so-called foreign monks will read the scriptures, he can eat and drink immediately the original snail's territory to steal.

The picture above is a comparison of the snail and the fossil snail. The difference is simple: the snail's conch tower is more pointed and its mouth is smaller, while the snail's conch tower is flattened and its mouth is larger. The shape of the snail is like a large snail, while the Fukushu snail is like a small conch.

The introduction of the Fukushima snail was mainly because it was edible and the flavor was said to be good. （The first time I've seen it, I've never eaten it. I've never eaten one!) But like all freshwater creatures, there is a parasite risk if you don't cook them properly. But if you say that the snail is a pest because it's a parasite, then Encyclopedia Weekly thinks you're not being scientific. If frogs are not cooked, the parasite is called schizothoracin; if eels are not cooked, the parasite is called jawbone nematode; if carp is not cooked, the parasite is called tapeworm ...... Generally speaking, if you don't cook things thoroughly, you will be at risk of parasitic infections. So Encyclopedia Weekly, as a responsible food weekly, reminds everyone:

Sashimi should always be marine! (Important things once is enough, unimportant things three hundred times all meters people listen to)

For example, salmon, many unscrupulous merchants will use freshwater rainbow trout fake salmon, this sashimi eaten will have the risk of parasitic infection. Salmon, pronounced "salmon," is actually just a trade name for Atlantic salmon. But with the growth of the seafood sashimi business, all kinds of salmon and chum salmon have been categorized as salmon in order to sell different fish at the same high price. However, the parasites of saltwater organisms are basically unable to parasitize the human body, so there is no risk in consuming sashimi. The same cannot be said for freshwater fish, and there is a high risk of infection in salmon made from freshwater rainbow trout. So it's a good idea to identify them before you eat them.

There is a simple way to identify: freshwater rainbow trout meat texture interval narrow, white interosseous fat is very thin or almost no, meat taste fishy, poor taste, not melt in the mouth feeling; salmon meat texture interval wide, interosseous fat wide, bright color, taste fresh sweet. However, encounter salmon tail or repeatedly thawed not fresh when this method does not work well. But there are but it, since the pretend to eat sashimi, do not care about spending a little more money to go to a reliable restaurant!

One more thing:

Fresh seafood sashimi does not need wasabi at all! Fresh seafood sashimi does not need wasabi at all! Fresh seafood sashimi is simply do not need mustard to deodorize! It's important to say it three times.

Back to the Fusiliers. Although it is an invasive species, it is an ornamental snail with great value as an ornamental snail - oversized, bright golden shell, omnivorous and easy to keep. That's what I kept on the island. If you don't want it, just fry it, you can't get parasites from your own homegrown snails, haha.

The ornamental fusiliers are yellowed individuals called golden snails, which are excellent scavengers in the aquarium.

While it's an invasive species, I don't have a problem with it compared to Brazilian turtles. First, because the Fukushima snail was originally introduced as food, breeding escape is inevitable, compared to the ignorant and unethical release of Brazilian turtles or moral superiority; Second, Fukushima snail is an excellent source of protein for other organisms in the field, rice paddies stocked with three or two ducks or a few snappers, a minute to take care of almost all of the Fukushima snail. And I've been watching a documentary recently - South Pacific - that gives another level of understanding of invasive species.

I've seen a thousand documentaries, but I still have to marvel at the quality of the BBC's work: the sound of the Rolling Stones is so damn female!

The BBC produced, that the picture quality of this documentary is certainly not to say. After watching the National Geographic and Discovery Channel documentaries and then watching the BBC's, the BBC's is a total feast for the eyes. The same equipment, but the BBC film is able to shoot a different sense of view, the point of view is very small, but gives people a very grand picture. It's as if you're right there under the waves, looking up and seeing the entire South Pacific. And as the first major selling point of the movie, the voice of the Rolling Stones is simply perfect. Standard "London accent", calm tone, the documentary kind of objective, scientific tone is very enjoyable. It is also said that many people use this movie as an oral listening practice material.

The South Pacific is a six-part series of 50-minute episodes, each of which is a standard documentary. It mainly introduces the unique marine and island ecology and culture of the South Pacific, the amazing natural landscapes, and the strange biological species. Compared to other documentaries with a single angle or perspective, South Pacific includes almost all of the natural landscapes and ecological cultures of the Pacific Ocean, and also explores the eternal theme of the relationship between mankind and nature in greater depth. And a big reason why this issue of Encyclopedia Weekly is written about the fusulinid snail is also because of another level of understanding of biological invasions after seeing South Pacific.

As the world's largest ocean, the 20,000 islands of the South Pacific are almost the farthest thing from the mainland. There is only distance there, no poetry. But the greatness of nature lies in creating the most beautiful harmony in the most incredible places. At some point there was the first coconut, the first lizard, the first man. Although it is a documentary, there is always no way to avoid the director's subjective thoughts and knowledge about the shooting location. Compared with the domestic science education movie, BBC's brilliance lies in letting the truth to expound, with the picture to express. We don't hear those hard sermons, nor do we see sensationalized scenes. Everything happens calmly and naturally. We are made to accept a certain point of view in a subtle way. And the point of view that the director wants to express can be benevolent, completely like enjoying the reading sense of a good novel. Thinking of the poor simulation and posing of "Tongue 2", the text to guide the viewer into an unreal story. The great successor of the documentary must also look at this group of Darwin's descendants ah!

Documentaries, compared to movies and other video works, are more focused on the real rather than the deliberate display.

First of all, it is certain that the islands have not been responsible for the production of living things since they were formed by volcanic eruptions. All of the now these plants and animals have since passed on their own. And just like Darwin found when he reached it, these creatures evolved into different species after a long time tunnel: some degenerated, some evolved, some even died out. The natural law of the survival of the fittest and the survival of the fittest was performed extremely well on these volcanic rocks when modern civilization had not yet arrived. When a certain species invaded another island as a dominant species, did it also cause the elimination and extinction of the species that landed on that island earlier? Or did it drive the evolutionary development of other species? The answer is of course yes, those "first colonizers" who are not adapted to the natural environment and are unable to fight against the dominant species will inevitably remain as fossils in the volcanic rocks. After competing to the death with those who came after them, the animals that evolved a stronger ability to survive naturally became another kind of organism. Therefore, the so-called biological invasion is, in a certain sense, also a realization of biological evolution. And the difference is that with the involvement of people, the separation of time is again very sharp.

Of course, as the biggest influence of biological invasions, human beings have always played a less than honorable role in the history of their own evolution: the destroyer of species. From the ancient mammoth, to the modern dodo and baiji, are more or less linked to human development. Therefore, it cannot be said that human-induced biological invasions are wrong, nor can such invasions be judged to be right. Like the Fusilier snail, there is no problem at all with biocontrol; the green hills and green water have brought back the original waterfowl and turtles, and isn't the crunchy-shelled tasty snail meat the best source of protein. The only mistake might have been that the chef wanted to leave work early and didn't cook through the plate of spicy fukushu snails.