Video Lectures of Zoology Optional Notes for UPSC for UPSC CSE Exam
Watch free video lectures for Zoology Optional Notes for UPSC covering all chapters/topics as per the latest syllabus in 2026. These concept videos, recorded lectures, and audio notes are designed to help UPSC CSE students understand every topic clearly — anytime, anywhere. Start learning on EduRev.
Fundamentals of Cell Biology and Division
| Structure and function of cell - 1 03:44 min |  |
| Structure and function of cell - 2 03:54 min | |
| Introduction to Cell Cycle 06:16 min | |
| Phases of Interphase 06:46 min | |
| Introduction to Mitosis 05:51 min | |
| Overview of Mitosis 05:18 min | |
| Introduction to Meiosis 04:53 min | |
| Similarities between Mitosis and Meiosis 05:21 min | |
| Overview of Meiosis 07:20 min | |
| Mitosis Vs Meiosis 06:37 min | |
Biostatistics
| Statistics & Biostatistics 14:32 min | |
| Frequency Distribution 17:50 min | |
| Measures of Central Tendency (Average) 16:53 min | |
| Arithmetic Mean/Simple Mean (Average) 22:03 min | |
| Weighted Mean (Arithmetic Mean) 11:26 min | |
| Log & Antilog Calculations 12:16 min | |
| Geometric Mean Short Cut 17:39 min | |
| Harmonic Mean Short Cut 13:24 min | |
| Median Calculations 15:32 min | |
| Mode Calculation 16:04 min | |
| Mean, Mode, Median Relationship & Questions 05:46 min | |
| Measures of Dispersion 13:15 min | |
Animal Kingdom
| Animal Kingdom - 1 54:09 min | |
| Animal Kingdom - 2 52:04 min | |
| Ctenophora, Platyhelminthes and Aschelminthes 60:48 min | |
| Phylum Anneleda and Phylum Arthopada 49:37 min | |
| Mollusca and Echinodermata 41:19 min | |
| Hemichordata and Chordata 39:02 min | |
| Amphibia, Reptilia, Aves and Mammals 51:06 min | |
| Class Cyclostomata, Chondrichthyes and Osteichthyes 41:41 min | |
Porifera
| Porifera part - 1 51:43 min | |
| Porifera part - 2 52:20 min | |
| Porifera part - 3 73:29 min | |
Platyhelminthes
| Playhelminthes - 1 71:01 min | |
| Playhelminthes - 2 65:39 min | |
| Playhelminthes - 3 64:49 min | |
Annelida
| Annelida part - 1 63:22 min | |
| Annelida part - 2 74:47 min | |
| Annelida part - 3 74:47 min | |
Echinodermata
| Phylum - Echinodermata 12:30 min | |
Protochordata
| Protochordata - 1 74:37 min | |
| Protochordata - 2 59:00 min | |
| Protochordata - 3 64:24 min | |
| Protochordata - 4 49:14 min | |
| Protochordata - 5 86:20 min | |
Comparative functional anatomy of various systems of vertebrates
| Comparative account of heart in Vertebrates 10:51 min | |
| Evolution of heart in vertebrates 12:22 min | |
| Study of heart in diff. Classes of Vertebrates 16:16 min | |
| Three Chambered Heart in Dipnoi Fishes,Amphibians & Reptiles 47:03 min | |
| Four Chambered Heart in Mammals and Birds /Aves 23:20 min | |
| Comparison Table of Heart in Vertebrates & Aortic Arch 25:40 min | |
| Comparative anatomy of Integument or skin in Vertebrates 24:47 min | |
| Derivatives of Integument 26:14 min | |
| Derivatives of Integument (Continued) 15:16 min | |
| Derivatives of Integument-Horns 12:19 min | |
| Derivatives of Integument-Feathers 23:05 min | |
| Derivatives of Integument-Feathers 12:05 min | |
| Integument in Different classes of Chordates 18:25 min | |
| Integument in Different classes of Chordates 29:54 min | |
| Table -Comparative Anatomy Of Integuments in Vertebrates 19:18 min | |
| Respiratory system in Vertebrates-Comparative Anatomy 10:19 min | |
| Respiratory system in Fishes (Scoliodon) 28:44 min | |
| Respiratory system in Amphibians (Frogs) 29:52 min | |
| Respiratory system in Reptiles (Uromastix)-Comparative Anatomy 20:56 min | |
| Respiratory system in Birds (Pigeon)-Comparative Anatomy 28:53 min | |
| Respiratory system in Mammals (Rabbit)-Comparative Anatomy 32:56 min | |
| Digestive system in Vertebrates (Fishes-Scoliodon)-Comparative Anatomy 24:33 min | |
| Digestive system in Vertebrates (Amphibians- Frog) 30:12 min | |
| Digestive system in Vertebrates (Reptiles-Uromastix) 23:17 min | |
| Digestive system in Vertebrates (Birds-Pigeon) 23:19 min | |
| Digestive system in Vertebrates (Mammals-Rabbit) 41:58 min | |
Genetics
| Introduction: Genetics 09:32 min | |
| Basics of Genetics 25:32 min | |
| Hereditary Diseases in Man - 1 38:54 min | |
| Cell Signaling, Defects and Consequences 28:12 min | |
| Hereditary Diseases in Man - 2 36:51 min | |
| Hereditary Diseases in Man - 3 21:21 min | |
| Cell Signaling, Defects and Consequences 28:17 min | |
| Mendel's Law of Inheritance 47:41 min | |
Evolution
| Introduction: Evolution 16:39 min | |
| Theories of Origin of life 33:27 min | |
| Theories of Evolution - 1 28:57 min | |
| Theories of Evolution - 2 53:33 min | |
| Natural Selection 21:41 min | |
| Role of Mutation in Evolution 19:09 min | |
| Evolutionary Pattern 49:48 min | |
| Hardy-Weinberg Law 47:59 min | |
| Continental Drift 34:37 min | |
| Distribution of Animals 41:46 min | |
| Geological Time Scale 48:04 min | |
| Evolution of Horse 37:05 min | |
Systematics
| Taxonomy & Systematics 19:28 min | |
| Binomial Nomenclature 26:40 min | |
| Biological Classification 23:16 min | |
| Basis of Classification 40:07 min | |
| General characters of Protozoa 29:43 min | |
| Classification of protozoa 30:43 min | |
Biochemistry
| Instrumentation in Biochemistry 60:35 min | |
Physiology
| Clotting Factor 01:04 min | |
| Respiratory System 06:24 min | |
Developmental Biology
| Introduction: Developmental Biology 12:56 min | |
| Gametogenesis & Spermatogenesis 37:13 min | |
| Composition of Semen & Capacitation of Sperm 49:58 min | |
| Fertilization in Mammals 41:58 min | |
| In-Vitro Fertilizn & Embryo Transfer Technique 52:29 min | |
| Developmental Biology: Embryogenesis 36:32 min | |
| Placenta in Mammals 57:51 min | |
| Gastrulation in Amphibians 68:59 min | |
| Establishment of Body Axes 52:59 min | |
| Morphogen and Morphogenesis 47:04 min | |
| Genetic and Induced Teratogenesis 47:08 min | |
| Role of Thyroxine in Metamorphosis 41:53 min | |
| Developmental Genes in Man 25:41 min | |
| Development of Heart 58:41 min | |
| Development of Eye 39:14 min | |
| Developmental Biology: Aeging 48:02 min | |
| Cell to Cell Interaction 34:45 min | |
| Stem Cell, Totipotent, Pluripotent, Application 41:14 min | |
| Biogenetic Law(Ontogeny recapitulate Phylogeny), Baer's law 42:58 min | |
Biosphere
| Biogeochemical Cycles 04:16 min | |
| Greenhouse effect 09:30 min | |
| Commubity Ecology 10:48 min | |
| Environment and its components 05:25 min | |
| Amosphere and layers of Atmosphere 09:36 min | |
| Layers of Atmosphere 09:09 min | |
Concept of ecosystem
| Introduction: Ecosystem 06:56 min | |
| Types of Ecosystem 04:58 min | |
| Components of Ecosystem 08:27 min | |
Population
| Population Ecology 09:56 min | |
Wildlife of India
| Wildlife Conservation 09:50 min | |
Remote sensing for sustainable development
| Remote sensing of sustainable development 08:25 min | |
Environmental biodegradation
| Enviromental biodegradation 19:13 min | |
Behaviour
| Animal Behaviour 33:23 min | |
| Animal Behaviour - 2 34:05 min | |
| Instinctive Behaviour 43:23 min | |
| Social Behaviour 60:07 min | |
| Motivational Behaviour 30:09 min | |
| Role of Pheromones 72:01 min | |
| Motivational Behaviour - 2 35:37 min | |
| Learning Behaviour 29:03 min | |
Biological Rhythms
| Biological rhythms 06:59 min | |
Animal Behaviour
| Animal behaviour - 1 07:10 min | |
| Animal behaviour - 2 14:29 min | |
Vector-Borne Diseases
| Communicable Diseases 02:58 min | |
| Human Health & Diseases: AIDS 13:04 min | |
Pests Affecting Crops
| Pest of Oilseed 38:12 min | |
| Pest of sugarcane 27:58 min | |
Transgenic Animals
| Transgenic Animals 12:07 min | |
