We all see animals around us and even keep them as pets because we love them also. Most of these animals are vertebrates – they all have backbones. Fact 1 Meaning Of Vertebrate The word&hellip
Tagged By Vertebrates
Number of Mammal Species
How many mammal species are there? 355. As presented in the Living Planet Report 2008, issued by WWF International, there are 355 mammal species on earth. Among them, 292 belong to the terrestrial system, 49&hellip
Number of Lumbar Vertebrae
How many lumbar vertebrae are there? From 3 to 29. Mammals have different lengths of lumbar vertebrae, which vary from 3 to 29. Humans have 5 lumbar vertebrae (named L1 to L5), and so do&hellip