1, tigong
Lions have long been called the king of the jungle, but in terms of size, it seems that they should be replaced by one of their close relatives. This is the tiger lion, a large animal made by mating a male lion and a female tiger. Its shoulder stretch can exceed 1.2 meters, its body length is about 3.6 meters, and its weight is an astonishing 544 kilograms. This is twice that of a refrigerator and three times that of grand piano. In contrast, a larger purebred African lion can grow to 3 meters long and weigh 250 kilograms. So tigon can easily become the largest big cat in the world.
Tigon's huge size can be attributed to a specific gene combination. This is inherited from parents. A lion must compete for reproductive rights, so that its genes can promote the growth of future generations and ensure their survival. Usually, the lioness's genes will inhibit this growth, so that she can give birth to more offspring. However, tiger genes often produce a single offspring, which means that they can't inhibit the growth genes of male lions in offspring, thus giving birth to huge tigers. Because of this, if you cross a male tiger with a female lion, you will get more tigers and lions. Sadly, due to this gene transformation, tigon and tiger lion often have many health problems, and usually cannot survive to infancy, because lions and tigers have no natural overlapping habitats, and large tigon and tiger lion can only live in captivity. Considering the huge and aggressive nature of these creatures, there are currently less than 100 in the world.
2. Gray polar bear
If it is a male grizzly bear and a female polar bear, it is called a gray polar bear, and the female grizzly bear and the male polar bear give birth to an Arctic grizzly bear. They are usually 2 to 3 meters tall and weigh between 18 1 and 680 kilograms. In contrast, grizzly bears are usually 2 meters tall, while polar bears are about 3 meters tall. This means that the height of their offspring is just between them. Interestingly, both gray polar bears and arctic grizzly bears can give birth to healthy babies. This is very unusual because most hybrid species are infertile because of mixed genes. The exact number of these bears is still unknown. They do exist in the wild and are becoming more and more common. Unlike lions and tigers, grizzly bears and polar bears have overlapping habitats in the Arctic and America. With the influence of global warming on the Arctic climate, there are more and more opportunities for them to meet, so they begin to naturally combine and give birth to offspring. This may not be good news for grizzly bears, because this new hybrid offspring is more aggressive and fierce than grizzly bears.
3. Whales, dolphins and wild animals
Cetaceans and dolphins can also breed some animals. A female bottlenose dolphin and a male fake killer whale gave birth to a cetacean in Lu Lu Marine Life Park in Honolulu, Hawaii. It was named Kekemaru, which means from a calm ocean. Cetaceans are very strange creatures. Their heads look like fake killer whales, but their noses are more like dolphins. Their teeth are straight and look strange. Their bodies are gray like steel, which is very strange. This skin color seems to be between his parents. The adult Kekemaru is incredible because it is about 4 meters long and weighs 907 kilograms. Its mother is only 2 meters long and weighs 18 1 kg. But Kamaru grew very fast, only two years later, and she was older than her mother. It is now fully grown up and has given birth to its own baby.
4. reddish hairless chicken
There are many strange and ugly animals in nature, but they are also worthy of respect. But sometimes, people deliberately cultivate some strange animals, such as this reddish hairless chicken. It was deliberately propagated in Israel, and this species was produced by crossing natural naked-necked chickens with broilers. So, why train them?
They are cultured and can avoid plucking after freezing. In addition, when hundreds of furry chickens are raised, they generate a lot of heat. It is not uncommon for chickens to overheat or even die on crowded farms. This kind of chicken is raised to solve this problem.
5. Pigs with monkey genes
The hybrid pigs we know naturally come from different kinds of pigs. However, technology sometimes brings more different things. Scientists in China have successfully bred pigs with monkey genes in laboratory environment, which is the first "pig-monkey chimera" in the world. A small part of its genes come from macaques that eat crabs. In addition to further understanding of gene technology, I also hope that scientists can cultivate human organs for transplantation. However, scientists still need to make more efforts. Because two pig-monkey chimeras died unfortunately within one week after birth, but the experiment was not in vain.
After the monkey's DNA is manipulated, it will produce a bright fluorescent protein, so these cells can be easily observed in the liver, spleen, heart and lungs of pigs.