In geochemistry, hydrology, paleoclimatology and paleoceanography, δ¹⁵N or delta-N-15 is a measure of the ratio of the two stable isotopes of nitrogen, ¹⁵N:¹⁴N. From Wikipedia
Forensic experiments at the Tennessee Body Farm traced nitrogen isotopes in fly larvae from decaying carcasses to show maggot consumption mimics a hypercarnivorous signature.
