32,272 免费图片适用于生物学

水下鱼海上生活海洋水动物野生动物洋海西維吉尼亞州

Redbreast sunfish-1

Ash Meadows Amargosa pupfish-1

Young brook trout with fall leaves in water-1

Bluegill on nest-1

Rock bass-1

Ash Meadows Amargosa pupfish-1

Slimy sculpin-4

Aspen Leaf

Bluegill on nest-2

Brook trout

Bluebreast darter

Brook trout-3

Bluegill on nest-3

Brook trout-2

Microscope virus

实验室科学

Cedar Tree

scientist doing research in a quantum optics lab

The Monterey Bay Aquarium, California. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Virus Germ

生物学病原体

Biologist monitors aquatic plants

Skeleton Foot

医疗药物科学

Arctic grayling-2

Sub-Adult Pallid sturgeons

Blue tang fish

Hellbender-1

Biologist monitors aquatic plants-1

Domestic Training Course for healthcare workers. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Male bowfin hides in vegetation-4

surgeon at work in operating room

医疗药物骨骼

Redline darter -3

Shark Fish

Cicada

Green sea Turtle

Bug

Brightly lit Florida bluegill

Bluegill-3

野生动物鱼

Redear sunfish-3

A medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A 100X photomicrograph magnification of photomicrograph of a hematoxylin and eosin (H&E) stained liver tissue specimen, revealed the presence of histopathologic changes indicative of fatty degeneration. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Water Dragon

Rainbow trout-1

Logperch

Brook trout-3

Brook trout-1

Chinook salmon migrating-3

Chinook salmon-2

Chinook salmon migrating-3

Brook trout-2

Candy darter-1

Alewife-2

Slimy sculpin

Chinook salmon migrating-1

Yellow-margin triggerfish at Palmyra Atoll National Wildlife Refuge

Dusky Grouper - Epinephelus marginatus

Chinook salmon dorsal fin

Yellow bullhead catfish-4

Lake monster

Bluegill on nest-1

Brook trout-1

Redline darter -2

Bluegill on nest-1

Bluegill-1

Brook trout-1

Chinook salmon

Bluegill close-up

Sockeye Salmon-1

Chinook salmon-4

Chinook salmon migrating-3

Brook trout-4

Chinook salmon-1

Triceratops Dinosaur Bone

Mimic shiner-1

Fern foliage

Bluegill on nest-2

Redbreast sunfish-1

Ash Meadows Amargosa pupfish-1

Tiny Fish

Oak Tree

water drops on the leaf

显微镜

实验室科学

Northeastern beach tiger beetles

节肢动物动物

Dna Gene

Brook trout-1

Brook trout-1

Striped mullet school swims over vegetation-1

Largemouth bass-2

古老的水下

MERS Coronavirus Particles–Colorized scanning electron micrograph of Middle East Respiratory Syndrome virus particles attached to the surface of an infected VERO E6 cell. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Slimy sculpin-3

A healthcare worker donning a pair of protective goggles and protective equipment. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Biologists search for Fountain Darter-1

Brook trout-1

Rainbow trout-1

Bluegill on nest-2

Redbreast sunfish-1

Ash Meadows Amargosa pupfish-1

Black Nose Shark - Carcharhinus acronotus

Dachshund with eyeglasses

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