Ancient Era
Philosopher in Western history who tried to explain the world through reason, observation, and natural principles, rather than mythology.
THALES OF MILETUS
Produced an illustrated encyclopedia, "Historiae Animalium".
Conrad Gessner
Darwin’s Bulldog
Thomas Huxley
A pioneering primatologist and fearless conservationist who studied mountain gorilla behavior while actively fighting poaching and habitat destruction, leaving a lasting legacy in wildlife conservation.
Dian Fossey
The core focus of the Filipino zoologist is.
Conservation
The ancient study of nature and the universe, seeking to explain the world through reason, observation, and logic, and serving as the foundation for modern science.
Natural philosophy
He laid the foundation of species classification.
Carl Linnaeus / Carl Von Linne
Animalcules means
Little animals
They show that animal behavior is both functional and communicative, shaped by evolution and sensory perception.
Nikolaas Tinbergen and Karl von Frisch
He led more than 50 wildlife expeditions across the Philippines from 1935–1977, visiting about 25 islands to collect animal specimens and study biodiversity.
Dr. Dioscoro Rabor
He revolutionized healthcare by introducing observation, diagnosis, and ethics, emphasizing that disease has natural causes and that physicians must act with care and integrity.
Hippocrates
Revolutionizing human anatomy through direct observation and dissection
Andreas Vesalius
It provided a mechanism explaining how species change over time.
On the Origin of Species
They rediscovered Mendel’s work, leading to the modern synthesis of evolution and genetics.
Hugo de Vries, Carl Correns, and Erich von Tschermak
A Filipino agricultural scientist whose research, breeding programs, and educational leadership transformed poultry science and livestock production.
Dr. Francisco M. Fronda
His work laid the groundwork for later scientists Darwin and Linnaeus.
Aristotle
The species are not immutable; they change over time under the influence of environment.
Georges-Louis Leclerc, Comte de Buffon
English physician and anatomist whose experiments demonstrated that blood circulates continuously through the body, pumped by the heart.
William Harvey
Pesticides like DDT were widely used in agriculture to control pests. What DDT means?
DDT stands for Dichloro-Diphenyl-Trichloroethane.
He works particularly within the Philippine archipelago — one of the world’s biodiversity hotspots.
Dr. Arvin C. Diesmos
Reason why Galen moved to Rome?
Reasons for Moving to Rome
- Career Opportunities
- Access to Knowledge & Resources
- Prestige & Influence
- Personal Ambition
Binomial nomenclature is the two-name system invented by Linnaeus to give every species a unique, universal name. What is the proper way to write the scientific name?
Italicize or underline the full scientific name
Genus capitalized, species lowercase
A Danish botanist and geneticist who coined the term “gene”, clarified the difference between genotype and phenotype, and demonstrated through pure line experiments that environmental factors, not genetics, explain variation in uniform populations.
WILHELM JOHANNSEN
CRISPR stands for
Clustered Regularly Interspaced Short Palindromic Repeats
A Filipino biochemist who turned deadly snail venom into useful scientific tools, making breakthroughs in neuroscience, drug research, and community science — and earning her status as a National Scientist.
Dr. LOURDES J. CRUZ