Gar Fish
A long, slender fish with a long snout and hard scales, known as a living fossil from the time of dinosaurs.
What is it?
Gar fish are a group of primitive ray-finned fish in the family Lepisosteidae. They have long bodies, long jaws filled with sharp teeth, and thick, diamond-shaped scales. They live in freshwater habitats in North America. Gars are ambush predators that feed on fish and small animals. They can also breathe air using their swim bladder, allowing them to survive in stagnant water. The gar fish you captured is a living fossil that has existed for over 100 million years. You learned that gar fish are often called "living fossils" because they have remained almost unchanged since the Cretaceous period. They are an important subject for studying fish evolution.
Why it matters
Gars are important for studying evolution because they have remained almost unchanged for over 100 million years. They help scientists understand ancient ecosystems and how some species survive mass extinctions. They also play a role in controlling fish populations in freshwater environments.
Where you've seen it
This list grows as you capture more gar fish exhibits.
Related
雀鳝鱼
一种长有长吻和坚硬鳞片的细长鱼，被称为恐龙时代的活化石。
这是什么？
雀鳝鱼是雀鳝科（Lepisosteidae）的一组原始辐鳍鱼。它们身体细长，长颚上布满锋利的牙齿，并有厚实的菱形鳞片。它们生活在北美的淡水栖息地。雀鳝鱼是伏击捕食者，以鱼类和小型动物为食。它们还能用鳔呼吸空气，从而在停滞的水中生存。你捕捉的雀鳝鱼是一种已经存在超过1亿年的活化石。你了解到雀鳝鱼常被称为“活化石”，因为它们自白垩纪以来几乎保持不变。它们是研究鱼类进化的重要对象。
为什么重要
雀鳝鱼对于研究进化很重要，因为它们已经几乎不变地存在了超过1亿年。它们帮助科学家了解古代生态系统以及一些物种如何在大灭绝中幸存。它们还在控制淡水环境中的鱼类种群方面发挥作用。
你在哪里见过它
当你捕捉更多雀鳝鱼展品时，这个列表会增长。
