Zoology

This article introduces the reasons why nocturnal wolves like to howl at night and the various functions of howling. It also mentions that zoologists will find and study wolf packs by imitating howling.

This article answers the question of why the golden leopard drags its prey onto the tree, and introduces the appearance characteristics, number of subspecies and distribution range of the golden leopard. It shows that due to the existence of strong enemies such as tigers, jackals, and wolves in the habitat environment, the golden leopard is good at climbing trees. Climbing trees will keep food and avoid danger by dragging its prey onto the tree.

This article focuses on why cheetahs cannot chase prey at high speed for a long time. It introduces cheetahs 'extreme running ability and adapted body structure. It explains the reasons from the two aspects that the respiratory and circulatory system cannot keep up with the needs of anaerobic exercise, and high-speed running produces too much heat and is prone to collapse. It also mentions cheetahs' hunting strategies and the survival situation of prey that is easy to be robbed.

This article focuses on the reasons for the birth of white tigers, explaining that white tigers are not freaks, but albinism caused by some genetic mutations. The probability of occurring in natural conditions is about one in ten thousand. In ancient times, wild white tigers have been recorded. Nowadays, most common white tigers are artificially bred. There are also albino animals such as white snakes and white frogs in nature.

The theme of this article is "Why tigers are poisonous and don't eat their young", explaining that even if a mother tiger is hungry, she will not eat her cubs, and will do her best to protect her cubs and teach her hunting skills. At the same time, it is pointed out that this maternal nature is not unique to tigers, and many animals will cherish their cubs and often rely on their smell to identify their own larvae.

With the theme of "Two tigers cannot be accommodated in one mountain", this paper introduces the tiger's habit of living alone and the way to mark the territory, explains the cause of this statement from the ecological laws of energy transmission in the food chain, and points out that over-development of mountains and forests leads to the tiger's lack of food and survival. The current situation facing severe threats.

This paper focuses on issues related to lions and tigers and introduces the origin of lions and tigers: wild lions and tigers have basically no intersection living environment, it is difficult to mate in the wild, and there is a low probability of producing hybrid descendants under artificial breeding. The article clarifies that the two do not meet the definition of species and are not new species. It also mentions that human artificial interspecific hybridization has a long history.

This article explains that lions are not afraid to fight alone, but because they inhabit the African grassland, and their prey are mostly large and fast-running herbivores. After long-term evolution and natural selection, individuals hunting alone have been eliminated due to difficulty in feeding and reproduction. Individuals who cooperate in hunting can survive and protect food. Wolves, hyenas, etc. also have similar collective hunting habits.

This article answers the question that "carnivores do not gain weight when eating meat, and pigs gain weight when eating omnivorous foods". It shows that wild carnivores consume extremely high energy during predation, and the energy intake is difficult to convert into fat storage; raising domestic pigs has small activity and sufficient food can easily accumulate fat, while raising pigs and wild boars do not accumulate a lot of fat due to their high energy consumption.

This article focuses on "Why do mammals have eyes long in front", introducing the general role that mammalian eyes are mostly in front of the head, comparing the differences in eye positions and functions of carnivorous, herbivorous and other groups, and also explaining the special environment. The situation in which mammals rely on other senses to make up for their vision deficiencies.

This article focuses on why animals in Australia are weird. First, it distinguishes marsupials from placental animals, which shows that placental animals have replaced marsupials on most continents because of their complete development and high survival rate of their young; geographical isolation in Australia due to the early separation of the plate, coupled with diverse habitats, marsupials have evolved into many endemic species. It also mentions that similar evolution phenomena exist in Madagascar Island.

Elephants have the longest lifespan among land mammals, and blue whales have the longest lifespan in the ocean. It also explains the relationship between lifespan and heart rate and body size, and the principle of how body size affects lifespan under the body temperature regulation mechanism of warm bloods.