Dolphins are mammals,not fish Also, dolphins are different than "dolphinfish," which are also known as mahi-mahi. Like every mammal, dolphins are warm blooded. Unlike fish, who breathe through gills, dolphins b
So, while sharks and dolphins might share the same ocean and have similar body shapes, they’re two completely different creatures. One’s a mammal, the other’s a fish. One breathes air, the other breathes water. One has a single set of teeth, the other has a conveyor belt of chomper...
【题目】 A dolphin is a mammal(哺乳动物), not a ish. It must come to the surface o f water to breathe. So how does it manage its breathing an d sleeping?Greq Early, a specialist on marine (海洋的)mammals, said. "When scientists first trie d t o anesthetize (麻醉)dolphins, the...
The dolphin is a mammal, which is warm blooded, and has live births.The dolphin fish is a fish. Both animals do have a dorsal fin; the dolphin fish’s dorsal fin runs along most of its body, while the dolphin's dorsal fin is in the center of its back. It’s likely that the mis...
选项A:“A dolphin lays eggs.”(海豚产卵),但实际上海豚是哺乳动物,哺乳动物是胎生的,而不是产卵的,所以选项 A 错误。选项B:“Mammals give birth to their young.”(哺乳动物生育幼崽),这是哺乳动物的一个重要特征,与哺乳动物的定义相符,所以选项 B 正确。选项C:“A crab is a mammal.”(螃蟹是哺乳...
one making it to 40 is comparable to a human living to be 100. According to the Institute for Marine Mammal Studies, the oldest dolphin aged scientifically in the wild was 48 years old. The dolphin life expectancy in captivity appears similar, as the oldest dolphin in captivity was over 50...
Is an octopus a fish or amphibian? Is a mudfish an amphibian? Is a starfish a reptile or amphibian? Are snails oviparous? Is a marsh frog an amphibian? Is a lungfish an amphibian? Is a seahorse a vertebrate or invertebrate? Is a frog a mammal or amphibian?
1. **A) Shark(鲨鱼)** 鲨鱼属于**鱼类**,用鳃呼吸,卵生或卵胎生(幼体在母体内发育但无胎盘营养供给),不符合哺乳动物的胎生、哺乳特征。 2. **B) Dolphin(海豚)** 海豚属于**哺乳纲鲸目**,具有哺乳动物的核心特征: - **胎生**,幼体通过胎盘在母体内发育。 - **用肺呼吸**,需定期浮出水面...
The answer isYES, a dolphin IS a mammal. Let’s find out why … Although a dolphin looks more like a fish than a ‘typical’ mammal such as a dog or a cat, it has all the characteristics of a mammal. These include: having lungs for breathing air, having a backbone, and the femal...
C. A crab is a mammal. 相关知识点: 试题来源: 解析 B. Mammals give birth to their young. 正确答案是 B. 哺乳动物生下它们的幼崽。 海豚是哺乳动物,它们不产卵,而是直接生下幼崽,因此选项 A 错误。螃蟹是甲壳类动物,属于节肢动物门,不是哺乳动物,因此选项 C 错误。只有选项 B 正确地描述了哺乳动...