Van allen radiation belts
Birds and other animals can detect meridians
earth's magnetic fields
Cryptochromes: Proteins that help detect magnetic meridians, they are involved in the circadian rhythms of plants and animals, and possibly also in the sensing of magnetic fields in a number of species. Cryptochromes are a class of flavoproteins that are sensitive to blue light. They are found in plants and animals.
Circadian Rhythms: circadian rhythm is a roughly 24 hour cycle in the physiological processes of living beings, including plants, animals, fungi and cyanobacteria.
Flavoproteins: proteins that contain a nucleic acid derivative of riboflavin: the flavin adenine dinucleotide or flavin mononucleotide.
Protein: a long chain of amino acids: nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms, especially as structural components of body tissues such as muscle, hair, collagen, etc., and as enzymes and antibodies.
Amino acids: are organic compounds composed of nitrogen, carbon, hydrogen and oxygen, along with a variable side chain group.
Nucleic Acid: a complex organic substance present in living cells, especially DNA or RNA, whose molecules consist of many nucleotides linked in a long chain.
Here is an article of Animal Magnetoreception:
Bioluminescence: the biochemical emission of light by living organisms such as fireflies and deep-sea fishes.
Photoproteins: are a type of enzyme, made of protein, from bioluminescent organisms. They add to the function of the luciferins, they are light-producing ...
Biofluorescence: a phenomenon by which organisms absorb light, transform it, and eject it as a different color—is common and variable among marine fish species, indicating its potential use in communication and mating.