Which fish have males instead of females? Detailed answer

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Which fish have males instead of females? Detailed answer

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Which fish have males instead of females?

Seahorse offspring are carried by the male, not the female. On the body of the male there is a special pocket where the female throws eggs. This brood chamber is richly supplied with blood and acts as a uterus.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Who can identify music on records without listening to it?

American physician Arthur Lintgen has the unique documented ability to identify a classical orchestral piece of music on a vinyl record without listening to it. First, he recognizes the places where the music is quieter or louder, as well as the duration of each part of the work, by the contours and depressions of the track, and then compares the result with the extensive knowledge base of European classical music from his head. Lintgen's abilities are not unlimited - according to him, he poorly defines the music of the pre-Beethoven era, as it is too uniform in its structure.

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Fine grinding for the pig 31.05.2016

How to grind corn for pig feed? It would seem that for tenderness, the pig is remarkable because it will eat everything. However, animal breeders from the University of Illinois, led by Oscar Rojas, decided to clarify this issue.

Typically, corn is crushed into particles of 650 microns. The researchers also took other sizes - 865, 677, 485, and 339 microns. 3,6-3,87% fat was added to the feed with large particles, and only 2% to the feed with small particles. And what? There was no difference: the pigs gained weight equally, and their meat quality was similar. In other words, just by grinding it was possible to save 1,5% of the fats added to the feed. The difference seems insignificant, but if there is a lot of food, then the savings in money can come out tangible. And the reason is clear: a pig spends less energy on digesting small food.

On the other hand, there is a suspicion that small feed can provoke stomach ulcers in pigs, so the researchers recommend protecting animals from unnecessary stress.

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