Insects (Entomology) 133 Developmental Biology-- Reproduction-- Growth 96 Animal behaviour patterns 88 Cell Biology-- Cytology 64 PhD Theses 62 Ecology-- Biodiversity-- Conservation 51 Genetics 39 Hormones 35 Biochemical genetics-- Molecular Biology 31 Biochemistry-- Histochemistry-- Cytochemistry 29 Natural history-- India 29 Endocrinology 27 Evolution-- Life Science 26 Physiology-- Specific physiological systems in animals 26 Vertebrates-- Cold-blooded vertebrates-- Pisces (Fishes)-- Cat fishes 26 Nervous and Sensory systems 19 Life sciences-- Biology 18 Enzymes-- Coenzymes-- Cofactors-- Enzymology 17 Nematoda (Nemata-- roundworms) 17 Parasites-- Parasitology 17 Proteins-- Peptides-- Amino acids-- Hemoglobin 17 Biostatistics-- Biometrics 16 Immunology 16 Wildlife conservation 15 Aquaculture 14 Biophysics 14 Cancers 14 Embryology 14 Environmental pollution-- Effects of humans-- pollution on ecology 14 Animal Physiology 13