【推荐1】Unlike humans who enter a state of relatively complete unconsciousness while sleeping, birds can more carefully control their sleep. Birds often sleep with one eye open, only half their brain resting at the same time. The other half of the brain is awake, able to note danger if needed.

While the exact way in which birds control their sleep patterns has not been well studied, it has been shown that the safer a bird feels when sleeping, the more likely it is to sleep deeper. If the situation is more uncertain, however, the bird will sleep more lightly.

Sleeping together is another defensive method that many birds use. By living together, some species can create a nighttime place where thousands of individuals sleep. As a result, there are more birds to notice their enemies’ attack, giving each individual bird a greater chance of survival. In winter, many birds, particularly small birds, live together to share body heat and survive lower nighttime temperatures.

When birds sleep, they bury weak body parts in their feathers. A bird’s feathers create air pockets that help it keep warm, and by placing feet or the bill into the feathers, less body heat is lost. When a bird’s bill is buried deeply in its feathers, it is also able to breathe air warmed by its own body heat.

There is little data about how long birds sleep at a time, but studies show that birds may sleep longer during longer nights. This may be because birds are not able to search for food or take part in other activities without enough light and so sleeping is the next natural item on their to-do lists. Birds are able to sleep for a short time during the day, however, and can also sleep longer whenever they are in a safe place.

【推荐3】Suy credits his interest in photography to a French journalist he met in 2000. Since 2012. he has used his love of photography for a good cause: protecting wildlife. As more and more animal species began to disappeer from Kandal Province, he grew worried. So he created a photo project which he hoped would bring more attention to the loss of natural habitats in Cambodia.

He hopes to educate Cambodians about the importance of bird species and the effect they have on nature. He said, “The biggest issue is the damage to habitats and poaching".Besides that, it is due to the demand from the rich who desire wild meat and who consider wild meat chemical-free.

His photography work has shown “how lack of education and law enforcemen” makes the problem worse. Hunting is at the root of Cambodian culture.“Education is very limited,” he said. “And in terms of legal enforcement, only one organization is standing out, and that is the Wildlife Alliance.” He noted that the group had carried out a number of successful crackdowns against hunting. But there were few major campaigns on wildlife hunting.as a whole.

Protected areas within forests have disappeared at the same rate as forests in other parts of the country Poaching and hunting have led to the loss of animal and plant species in Cambodia.

To Chantha Nasak, a wildlife expert, the damage to wildlife habitats is the main reason for the decrease in the number of wild animals.He says the destruction of forests and the use of land for agricultural and other purposes are the biggest threats, as well as the climate change.

However. there are already agreements between some NGOs and the Cambodian government to help wild species. Also. Chantha Nasak says some communities are working together to protect wildlife around the country.

“All Cambodian citizens should join hands in the protection of wildlife, not just the NGOs and the government,” he said. “It should be everyone.”