Life in a frozen world
Have you ever thought about life in a frozen world like Antarctica? In this passage, we will explore life in this coldest, windiest, and driest place on Earth. The entire region is cold, yet many species thrive in this extreme environment. Unlike the species in Antarctica, humans have never adapted to live in this frozen wilderness. Green plants are typically the base of food chains, but there are no trees in Antarctica. Instead, giant algae grow under the water. These algae serve as food for krill, tiny shrimp-like creatures. Let’s learn about animal life in Antarctica. Krill play a crucial role in the food chain as a keystone species. They are the most abundant species due to their unique ability to shrink and survive without food for long periods. Fish, penguins, seals, and whales depend on krill as a food source. Icefish, also called "white-blooded fish," have blood as clear as water because they don’t produce red blood cells. This unique adaptation allows their blood t...