The existence of progenitor food crops (edible plants) on Earth was a necessary starting point for the availability of our food.
Thinking about all the species of animals, birds, and fishes, it becomes apparent that each one requires a certain type of food, suitable for its anatomy.
Nickel is an essential element in the human body, but too much is toxic. Here’s another element our planet had to provide.
To complete the argument for prior fitness of the elements for our Privileged Species, we must deal with the availability of another essential element.
Here’s a collection of short news items of interest from the animal and human worlds.