I believe that no one does not like the penguin, although this bird is short, but never afraid of the cold, can fish in the cold and bone-chilling sea. Coupled with the way they sway and walk on land, they are very likable.
There are a total of seventeen species of penguins in the world, the largest of which is the emperor penguin, which is about 1.3 meters tall, but biologists have found a fossil of an archaeopteryx penguin on the islands around New Zealand, the Waipala Henggu penguin, which can be described as a giant among penguins.
Nearly 70 million years ago, a huge meteorite swept across Earth's atmosphere and hit the ground directly. The disaster took away many Archaeopteryx birds, most dinosaurs and reptiles that lived in the ocean.
Soon after the meteorite disaster, surviving animals made up for their mutilated ecological habitats, contributing to the evolution of radiation between various organisms. Between 65 million years ago and 53 million years ago, archaeopteryx penguins developed rapidly in New Zealand, Antarctica and other places.
These penguins and amulets, including albatrosses, petrels, and seagulls, parted ways in the late Cretaceous period.
At present, scientists have found that the earliest penguins are not good swimmers, Wymanu penguins, in the 11 million years of their appearance, they began to gradually adapt to the ocean, becoming the top predators in the Antarctic Circle at that time, and the Waipala Yokogawa Penguin discovered by scientists is also one of them.
Three years ago, paleontologist Robin found fossil penguins in Waipala, New Zealand, in the Waipala excavation area, which is a green sand formation formed by the oxygen-deficient and organic matter-rich silt of the shallow seafloor layer, which has been squeezed by geological processes, and a variety of penguin fossils have been excavated from the local green sand strata.
At present, scientists have found two tibia, paws, femurs and other fossils of the Waipala Yokogawa penguin, and from the analysis of the characteristics of these fossils, the approximate size and height of the Waipala Yokogawa penguin can be inferred.
Waipala Yokoya penguins can reach 1.7 meters tall and weigh about 170 pounds, which is comparable to adults, and is 40 or 50 centimeters taller than the largest emperor penguins today.
Compared with the 1.8-meter-tall Bichkumi penguin, the Waipala Yokoya penguin is obviously slightly smaller, but it has another special significance, because the Waipala Yokogawa penguin belongs to the south wing Yokoya penguin found in Antarctica, indicating that the penguins in the two regions are very closely related.
According to the characteristics of many Yokoya penguin leg bone fossils, they are better at swimming in the sea than walking on land. 65 million years ago, the average temperature in the antarctic periphery was about 26 °C, which is about 14 °C higher than it is now.
In fact, ocean temperatures remained hot from the Paleocene to the middle Eocene, and the late Paleocene saw a warmest climate period to date. Beginning in the Oligocene more than 35 million years ago, temperatures have gradually reached today's temperatures.
Archaeopteryx penguins evolved rapidly in such a warm environment, so why did they flourish and be so large in prehistoric times, but today's penguins are getting smaller and smaller? Scientists believe that the island effect, species competition, and the absence of cetacean natural enemies in the surrounding seas may be the reasons.
New Zealand has found a variety of Paleocene penguin fossils, has been published unnamed fossils and other ancient penguin fossils that have not been identified after excavations, paleontologists believe that more such early archaeopteryx penguin fossils can be found here, and with the excavation of these penguin fossils, the early evolutionary puzzle of marine birds will gradually be completed.
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