Small amounts of the metal, ruthenium, are added to platinum to form an extremely hard alloy that is used in dental work, in jewelry, and as long-wearing pivot points in electromechanical instruments.
There are many, many different species of butterfly, so in order to provide some kind of answer let's consider only the Monarch butterfly. Monarchs feed on milkweed, which contains a compound that is...
Presuming you are talking about Nelumbo species, then all parts are edible either raw or cooked. Although for any real nutrition, eat the roots after boiling them. There is no point in eating the...