Kangaroos have a very small presence on the planet, except for mainland Australia, and only parts of Papua New Guinea to the north of Australia, but in fact, kangaroos have become one of Australia's most famous business cards.

There are many types of kangaroos, and most of them live in groups. Different species of kangaroos live in a variety of different natural environments. For example, the Podoroyd kangaroo makes its own nest, while the tree kangaroo lives in the bush, while most large species of kangaroos prefer to live in trees, burrows and rock crevices.

Kangaroos living in the Nullarbor Plains prefer to use caves as their habitat, because the Nullarbor Plains are very desolate, so desolate that even weeds are difficult to grow, but in the sinkholes below the ground, there are often dense plants, which have become the best food source for kangaroos, coupled with the unique topography of the sinkholes, so for millions of years, these sinkholes have become the favorite places for kangaroos.

Tang Feng and Sophia also descended the gentle slope to the bottom of the cave, and more than a dozen kangaroos were lazily gnawing on the weeds and shrubs on the ground in an area where direct sunlight could reach.

Depp and Donnie, the two little guys, seemed to be a little uncomfortable with the environment here, and the huge size of the kangaroos also had some shock to the two little guys, so in addition to the two little guys who were brave enough to cheer themselves up when they first saw the group of kangaroos, they plunged into Sophia's arms, showing their two little heads and looking around.

The performance of the two little ones also attracted the attention of some tourists in the surrounding area, and compared to the huge kangaroos, the cute appearance of the two little ones in Sophia's arms seemed to be more popular with everyone. A couple with two children immediately approached with their two children after seeing Depp and Downey.

"Hey, hello." Foreigners naturally like to deal with people, and this couple is obviously no exception, after two words of greeting, Tang Feng and Sophia got to know the couple in front of them.

The couple's name was Smith, so Tang and Sophia called the lady Mrs. Smith, their family is Sydneysider, and they came to Nullarbor Park to visit during the children's summer vacation, and the two little ones were named Jamie and Del, Jamie was the elder brother and Delle was the younger sister.

The four adults chatted at the bottom of the cool sinkhole, while Depp and Downey unfortunately fell into the hands of the two bear children, and after a while, they were tossed by the two bear children and screamed.

Mrs. Smith smiled and counted down the two bear children, and handed back Depp and Downey, who had been tossed a lot, to Sophia, causing the two bear children to shout "It's not fun".

Mr. Smith ignored the two yelling bear children, but looked at Depp and Donnie with interest and said, "It's rare to see two pure white German Shepherds!" ”

Hearing what Mr. Smith said, Tang Feng couldn't help but be a little surprised and said, "You mean that these two puppies of mine are German Shepherds?" But as far as I know, aren't the German pastors generally black and yellow? Isn't the black-backed black-backed one talking about the German pastor? Why, is there still a pure white one on the black back? ”

Hearing Tang Feng's question, Mr. Smith smiled and said: "Demu is not only a breed of black back, black back is just a breed of Demu, but because the black back is too famous, many people think that the German black back is Demu." In fact, in addition to wolf gray, black, and yellow, there is also a pure white Demu. In the eyes of many Germans, this rare pure white German Shepherd is the purest breed German Shepherd. ”

After a pause, Mr. Smith continued: "Although these two little ones are still small, they already have some basic characteristics of German Shepherds, look at the characteristics of their noses, head shapes, ears, and eyes, which are clearly the characteristics of typical German Shepherds, so I judged that these two little ones are two extremely rare pure white purebred German Shepherds. ”

When Tang Feng heard this, he suddenly realized, it was really a big world, he originally thought that the German black back was the German pastor, but now it seems that he made a mistake. It's not that the German black back is not a German pastor, but the real German pastor is not just a German black back!

After some inquiry, Tang Feng learned that Mr. Smith was a police officer, and he was responsible for the training of police dogs and drug detection dogs in the Sydney Police Department.

The two big men just stood at the bottom of the sinkhole and chatted about dogs, while Mrs. Smith and Sophia and the two bear children couldn't wait to follow the others to the depths of the sinkhole.

This sinkhole is not as shallow as it seems, in fact, on the west side of the bottom of this sinkhole, there is also a karst cave, which is said to be very deep, and there are many forks in the road, and it is difficult to figure out where these forks lead to.

However, most visitors will follow the instructions in the tourist brochure and return to the bottom of the sinkhole after a tour of the cave's halls, rather than exploring the forks in the road out of curiosity. Because those forks are very deep, even government workers have not explored where these forks will lead, so for the sake of safety, the intersection of these forks will have very eye-catching signs, reminding tourists not to go to those forks of the road to explore, so as not to have any accidents.

However, there are some forks in the road that have been discovered, such as the one directly facing the entrance to the hall. This fork in the road does not seem very large, but this fork in the road is extraordinarily long, and through this underground fork in the road, you can go to another sinkhole 1.5 kilometers away.

Nature is so miraculous, no one would have imagined that more than ten meters below the ground, there is an underground tunnel 1.5 kilometers long, and this tunnel is still naturally generated.

Some brave tourists will often follow the instructions to follow this fork in the road to another sinkhole, but most tourists will stop at the fork in the road, after all, although they know that the exit of the fork in the road is there, but the dark hole does not look very attractive, on the contrary, it will make people have a subconscious fear. It's all an instinctive reaction to the unknown.

Tang Feng and Mr. Smith, who were chatting enthusiastically, were interrupted by two bear children. When the two bear children learned that there was an underground tunnel leading to another sinkhole in this cave, the bear child's unafraid temperament was immediately stimulated, and the two children said that they wanted their parents to take them through this underground tunnel, Mrs. Smith couldn't bear the children's pleading, so she took the child out to find Mr. Smith. As long as Mr. Smith, the head of the family, nods in agreement, then the two bear children can get their wish.