Encyclopedias and dictionaries 31 Animal behaviour patterns 2 Developmental Biology-- Reproduction-- Growth-- Vertebrate reproductive biology 2 Quarterly Review of Biology (Journal) 2 Stars; Descriptive astronomy 2 Algae- Phycology 1 Animal population 1 Atherosclerosis 1 Atomic and Nuclear physics 1 Biology-Study & Teaching 1 Biostatistics-- Biometrics 1 Cell Biology-- Cytology 1 Colonisation 1 Developmental Biology-- Reproduction-- Growth 1 Ecology-- Biodiversity-- Conservation 1 Education 1 Education, Higher 1 Embryology 1 Endocrinology 1 Groups-- Algebra-- Mathematics 1 Higher education 1 Insects (Entomology) 1 Linguistics 1 Literary criticism 1 Phonetics 1 Political aspects 1 Primates-- Monkeyes 1 Regeneration (Biology) 1 Sense organs 1 Social change-- Social processes 1