The Earth's freshwater is even rarer. For humanity to thrive, or even exist, we need to sprinkle that teeny bit of fresh water in the right places, at the right times and in just the right amounts, Gallo said. Here's how Earth's freshwater is spread around the globe: 1  70 percent of freshwater is locked in ice caps.
Believe it or not these are not the first lines of terrible jokes, but real scientific questions with real living answers. Hybrid animals are the offspring produced when two animals of closely related â but different â species breed.The young produced will usually not be fertile, and so hybrid species are not normally seen in the wild. In order for more of these hybrid animals to exist the original two species must be cross-bred again.elieve it or not these are not the first lines of terrible jokes, but real scientific questions with real living answers. Hybrid animals are the offspring produced when two animals of closely related â but different â species breed.
Some half-breeds are well known, like the mule which is a horse and donkey mix. But since hybrids are usually infertile, most are much more rare, like the ones you are about to see below. Some may look fake, but we assure you theyâre in fact completely real. 1. Wolfdog â Wolf / Dog hybrid.2. Liger â Lion / Tiger hybrid. Ligers are HUGE. 3. Zebroid â Zebra / Donkey hybrid. An adult zebroid.ome half-breeds are well known, like the mule which is a horse and donkey mix. But since hybrids are usually infertile, most are much more rare, like the ones you are about to see below. Some may look fake, but we assure you theyâre in fact completely real. 1. Wolfdog â Wolf / Dog hybrid.