biology zoology blog benno meyer rochow organs

Lacking Something ?

Organisms without the organs we expect them to have

Desmond Morris described us human beings as “Naked Apes”, but as I pointed out in an earlier blog, we are not totally naked, even without clothes. However, we do lack a tail – just like the other so-called “great apes”, but not the gibbons, the baboons, macaques, etc. When something is missing we notice it at once: a snake has no legs, but still does pretty well without them; whales and dolphins also lack them, and the kiwi bird of New Zealand, even though it’s a bird, does not even have wings. —>—>

biology zoology blog benno meyer rochow situs inversus

When Everything is Back-to-Front and Left is Right and Right is Left

One of my Indian wife’s uncles was an engineer (another uncle was a person who exhibited eyeshine when a light was shone into his eyes at night and the children found that quite scary). Anyway, what was so special about the first uncle is related to the time he spent working in Libya. He got sick once, suffering from chest pain, saw the doctor and got a chest x-ray. When the nurse hung the x-ray photo against a light box, the doctor got mad at her and rebuked her for pinning the negative up back to front and that as a nurse she should know better. Overhearing that, this said uncle intervened and remarked that the poor nurse had actually been right, for he had a condition known as “situs inversus. —>—>

zoology biology benno meyer rochow science blog fish swimming

Progress to Roam Around more Freely

But even in fish it has its price

Have you ever had this feeling that you were really hungry or thirsty and needed to eat or drink something, but you were too exhausted (or let’s put it bluntly: too lazy) to get up and go to the shop? Getting up, putting on your coat, walking to the shop, etc., all that takes time and would, of course, also have required extra energy. The decision as to whether to stay at home or to go out procuring food is one that animals have to make all the time . —>