because none of them have the exact same deoxyribosenucleic acid (DNA) sequence
The Giant Panda has 42 chromosomes.
The main difference between the typological species concept and the morphological species concept is that the typological species concept classifies organisms that share characteristics that set them apart from others, whereas the morphological species concept classifies them as the same species if they appear identical.
Chordate pharyngeal slits initially functioned in filter-feeding to help retain food particles in early vertebrates. Over time, they evolved to serve multiple roles in respiration, sound production, and communication in different chordate species.
exotification
There is a slang phrase that says fat as a tonky pig. However, this type of pig does not appear to be a true species of pig.
they appear because they are extinct
The "Ten Statements" or "Ten Commandments" appear twice in the first five books of the Bible, with somewhat different texts: Exodus ch.20 and Deuteronomy ch.6.
Pipistrelle bats typically have a fur coloration that ranges from light brown to dark brown, often with a slightly lighter underbelly. Their fur can appear somewhat glossy, and they may feature a mix of shades that help them blend into their surroundings. The exact hue can vary among different species of pipistrelle bats.
There are several species of penguins. A different number of chromosomes can appear in each species. Studied species so far show penguins to have between 30 and 80. Emperor and rockhopper penguins both have 38 chromosomes.
Members of Congress collectively set their own salaries. Of course, if they appear to be overly greedy, there is always the possibility that voters will want to elect different people to Congress.
There are so many species of fish and they all differ. There are some in which there appear to be no differences and others that are so different they look like different species. If you define the species then I may be able to tell you how to sex them.
The early bacterias. Hominids
Not to appear somewhat insulting here...But the answer's in the question, weighing things.
They do not, so the question would appear to be somewhat misguided.
You can't, you have to send a message to the members in the group.
yes
The name is an approximation of Goat-sucker. they are strange animals not found in orthodox zoology manuals! There appear to be different species of something that is between a mammal and an armored reptile- but one can argue the Armadillo- not found in those parts, also fits this model. I will have to say there is something to Chupacabras- and it does appear there is more than one kind or species!