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White rat in cage, laboratory worker in background

Laboratory worker feeding white rat in cage

Laboratory worker examining white rat

Laboratory worker reaching into cage containing white rat

Laboratory worker looking into cage containing white rat

Laboratory worker holding digital tablet, looking into cage containing white rat

Laboratory worker, holding digital tablet, looking into cage containing white rats

Laboratory worker lifting white rat from cage

Laboratory worker injecting white rat using syringe

Laboratory worker holding white rat

Laboratory worker holding white rat, smiling

Laboratory worker holding white rat, smiling

White rat in cage, laboratory workers peering into cage

Laboratory worker injecting white rat, using syringe

Laboratory worker injecting white rat, using syringe, close-up

Laboratory worker injecting white rat, using syringe, close-up

Laboratory workers looking into cage containing white rats, low angle view

Laboratory worker using pipette, dripping liquid into petri dish

Laboratory worker using pipette to take liquid from test tube

Laboratory worker writing details on test tube

Laboratory worker holding liquid filled test tube

Laboratory worker examining contents of petri dish

Laboratory worker examining liquid filled test tube, close-up

Laboratory worker choosing measuring tube

Laboratory worker using digital tablet

Laboratory worker taking test tube from rack

Laboratory worker using pipette, dripping liquid into petri dish, close-up

Lab tech holding rat from vat

Laboratory worker examining liquid in test tube

Laboratory worker doing experiment in lab, close-up

Laboratory worker holding liquid filled test tube, close-up

Laboratory worker holding liquid filled test tube, close-up

Laboratory worker holding liquid filled test tube, close-up

Technician holding white rat, Close Up

Technician holding white rat, Close Up

Technician holding white rat, Close Up

Closeup of two female scientist are holding a lab rat for observation and experimentation in laboratory

Lab technician inspecting beaker of yellow biofuel in biofuel plant laboratory

Lab technician inspecting beaker of yellow biofuel in biofuel plant laboratory

Lab technician looking at beaker of yellow biofuel in biofuel plant laboratory

Lab technician looking at beaker of yellow biofuel in biofuel plant laboratory

Lab technician looking at beaker of red biofuel in biofuel plant laboratory

Lab technician looking at beaker of yellow biofuel in biofuel plant laboratory

Lab technician looking at beaker of red biofuel in biofuel plant laboratory

Closeup of female scientist wearing blue gloves holding rat with male colleague while working in a laboratory for experiment

Technician holding white rat, Close Up

Laboratory worker examining test tube

Laboratory worker holding test tube rack

Laboratory worker examining liquid filled test tube

Bacteriology research, 1910s

Laboratory worker using long pipette, dropping liquid into petri dish

Laboratory worker using long pipette to transfer liquid to petri dish

Laboratory worker using long pipette to transfer liquid to petri dish

Lunar material testing, 1969

Lunar animal research

Closeup of young female scientist hand holding and using syringe on laboratory rat

Laboratory worker using pipette, dripping liquid into petri dish, close-up

Biotechnology Research, scientist viewing samples in a multi well plate during an experiment in the laboratory

Biotechnology Research, scientist viewing samples in a multi well plate during an experiment in the laboratory

Scientist preparing blood samples in a multi well plate for clinical testing in a laboratory

Scientist preparing blood samples in a multi well plate for clinical testing in a laboratory

Scientist examining data on a laptop computer from an experiment in the laboratory

Researcher holding a DNA (deoxyribonucleic acid) gel during a genetic experiment in a laboratory

Scientist examining data on a laptop computer from an experiment in the laboratory

Scientist in clean suit with pipette and test tube

DNA Research, Scientist comparing DNA results on a computer screen in the laboratory

Laboratory workers looking at molecular model

Two laboratory workers looking at computer screen

US psychologists with laboratory rat and pet cat

Laboratory worker doing experiment in lab

Rat metabolism research

Laboratory worker holding test tube rack, close-up

Animal testing

Portrait of four laboratory workers in lab

Laboratory worker writing details on test tube

Laboratory worker writing details on test tube

Portrait of lab technician in biofuel plant laboratory

Worker wearing protective mask in factory

Researcher using a molecular model to understand a chemical formula in a laboratory

Researcher using a molecular model to understand a chemical formula in a laboratory

Researcher using a molecular model to understand a chemical formula in a laboratory

Scientist working in rain lab

Portrait of confident scientist in lab

Portrait of worker in clean suit among irrigation pipes in greenhouse

Scientist reading sample information on a blood sample ready to view under a microscope in laboratory for medical testing

Life Science, Scientist pipetting a sample in a eppendorf vial during an experiment in the laboratory

Forensic scientist with evidence in lab

Scientist viewing chemical experiment in laboratory

Scientist viewing chemical experiment in laboratory

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Funny scientist with cat skeleton in lab clinic

Laboratory worker placing liquid filled test tube in rack. close-up

Scientist in clean suit examining sample in test tube in laboratory

Female chemist working in chemical laboratory

Laboratory technician working on a device in laboratory of science center

Laboratory technician working on a device in laboratory of science center

Laboratory technician working on a device in laboratory of science center

Medical technician holding protective glasses with human samples on the laboratory bench

Portrait of confident botanist in laboratory

Two scientists standing in analytical laboratory with scanning electron microscope

Scientist in clean suit with beaker in laboratory

Portrait of mature male car mechanic in welding mask at repair garage

Man wearing protective suit and mask in the countryside

Man wearing protective suit and mask in the countryside

Engineer in clean suit examining pipes in laboratory

Scientist in clean suit conducting scientific experiment in laboratory

Scientist in clean suit using pipette and test tube in laboratory

Portrait of scientist in laboratory

Healthcare worker holding respiratory mask for ventilators

Healthcare worker holding respiratory mask for ventilators

Scientist viewing a DNA profile experiment in a laboratory

Scientist viewing a DNA profile experiment in a laboratory

Laboratory worker placing liquid filled test tube into rack, elevated view

Healthcare worker holding model of Corona Virus and vaccine

Healthcare worker holding swab test kit for PCR testing

Healthcare worker holding swab test kit for PCR testing

Laboratory worker choosing pipette, close-up

Female scientist examining cell cultures in multi well tray in the laboratory

Female scientist examining cell cultures in multi well tray in the laboratory

Female scientist examining cell cultures growing in a culture jar in the laboratory

Female scientist examining cell cultures growing in a culture jar in the laboratory

Chemist analyzing test tube in laboratory

Scientist pipetting a sample into a phial during an experiment in a laboratory

Scientist pipetting a sample into a phial during an experiment in a laboratory

Healthcare worker holding model of Corona Virus and a lateral flow test

Healthcare worker holding model of Corona Virus and a lateral flow test

Healthcare worker holding model of Corona Virus and a lateral flow test

Healthcare worker holding model of Corona Virus and a mini globe

Chemist wearing protective eyewear analyzing test tube in laboratory

Scientist working in lab pipetting

Two female researchers holding a lab rat for experimentation

Laboratory worker writing details on test tube, rear view

Laboratory worker examining two petri dishes side by side

Female scientist pipetting sample into test tube

Medical technican checking blood samples in lab

Medical technican checking blood samples in lab

Scientist in lab working with liquid

Chemist holding test tube in laboratory

Scientist in lab holding up two beakers with liquid

Scientist in lab holding up two beakers with liquid

Portrait confident scientist in flu mask behind global pandemic

Portrait male scientist in flu mask next to pandemic outbreak globe

Microbiology, Scientist using an inverted light microscope to view culture growth in petri dishes during an experiment in a laboratory

Microbiology, Scientist using an inverted light microscope to view culture growth in petri dishes during an experiment in a laboratory

Scientist preparing a sample slide containing a human specimen to view under a microscope in laboratory for medical testing

Scientist preparing a sample slide containing a human blood specimen to view under a microscope in laboratory for medical testing

Funny crazy student doctor studying animal skeleton

American biomedical researchers, 1957

Student doctor studying animal skeleton

Funny crazy student doctor studying animal skeleton

Funny crazy student doctor studying animal skeleton

Student doctor studying animal skeleton

Funny crazy student doctor studying animal skeleton

Student doctor studying animal skeleton

Funny crazy student doctor studying animal skeleton

Student doctor studying animal skeleton

Student doctor studying animal skeleton

Student doctor studying animal skeleton

Student doctor studying animal skeleton

Student doctor studying animal skeleton

Funny crazy professor studying animal skeletons

Funny crazy professor studying animal skeletons

The funny crazy professor studying animal skeletons. Funny crazy professor studying animal skeletons

Funny crazy professor studying animal skeletons

Funny crazy professor studying animal skeletons

The funny crazy professor studying animal skeletons. Funny crazy professor studying animal skeletons

Funny crazy professor studying animal skeletons

Funny crazy professor studying animal skeletons

Close up of scientist pouring liquid from test tube

Scientist in lab watering plant

Scientist holding safety glasses during an experiment in the laboratory

Scientist preparing DNA samples for testing in the laboratory

Scientist in lab examiming plant and taking notes

Scientist in lab holding green and red apple

Close up of medical technican preparing samples for automated analysis in the lab

Scientists in clean suits working in laboratory

Hand holding blood sample in laboratory