北方豹蛙的名字来自背部和腿部的绿褐色不规则斑点。大多数青蛙是绿色或棕色的斑点和珍珠，而下面。但是，还有其他颜色变形。 burnsi颜色的青蛙变形缺乏斑点或只有他们的腿。白化北部的豹蛙也会发生。北方豹蛙是一种中型到大型的青蛙。成人的长度为3至5英寸，重量为一半至2.8盎司。成熟雌性大于雄性。北部豹蛙生活在加拿大南部通过美国北部的沼泽，湖泊，溪流和池塘附近，南部进入西部的新墨西哥州和亚利桑那州以及东部的肯塔基州。在夏天，青蛙经常从水中冒险，可能会在草地，田野和牧场中找到。南部豹蛙（Lithobates sphenocephala）占据美国东南部，外观与北部豹蛙相似，只是它的头部更尖，其斑点更小。蝌蚪吃藻类和腐烂的蔬菜物质，但成年青蛙是机会主义的捕食者，吃任何适合他们口腔的食物。北方的豹蛙坐着等待猎物靠近。一旦目标在范围内，青蛙就会跳跃并用长而粘的舌头抓住它。常见的猎物包括小型软体动物（蜗牛和slu），蠕虫，昆虫（例如蚂蚁，甲虫，蟋蟀，叶蝉）和其他脊椎动物（小型鸟类，蛇类和小型青蛙）。青蛙不会产生令人反感或有毒的皮肤分泌物，所以它们被许多物种捕食。这些包括浣熊，蛇，鸟类，狐狸，人类和其他青蛙。
The name of the northern leopard frog comes from the green-brown irregular spots on the back and legs. Most frogs are green or brown spots and pearls, while below. However, there are other color variations. The frogs of the burnsi color are deficient in spots or only their legs. Leopard frogs in the northern part of Albino also occur. The northern leopard frog is a medium to large frog. Adults are 3 to 5 inches in length and weigh from half to 2.8 ounces. Mature females are larger than males. Northern leopard frogs live in southern Canada through swamps, lakes, streams and ponds in the north of the United States, southern to New Mexico and Arizona in the west, and Kentucky in the east. In the summer, frogs often venture from the water and may find them in grass, fields and pastures. The southern leopard frog (Lithobates sphenocephala) occupies the southeastern United States and looks similar to the northern leopard frog, except that its head is sharper and its spots are smaller.蝌蚪 eat algae and decaying vegetable matter, but adult frogs are opportunistic predators and eat any food that suits their mouth. The northern leopard frog sits and waits for the prey to approach. Once the target is in range, the frog will jump and grab it with a long, sticky tongue. Common prey include small mollusks (snails and slu), worms, insects (such as ants, beetles, crickets, spider mites) and other vertebrates (small birds, snakes and small frogs). Frogs do not produce offensive or toxic skin secretions, so they are preyed by many species. These include raccoons, snakes, birds, foxes, humans and other frogs.