Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered. (non-ex)
01627747
Nigel Cattlin / Immature caterpillar of a codling moth (Cydia pomonell) eating its way through a gallery in a ripening apple fruit, Berkshire, July
01626496
Morley Read / Developing embryo of the Ecuadorian monkey frog (Phyllomedusa ecuatoriana), showing heart beating and blood flowing, Morona Santiago Province, Ecuador, (non-ex)
00556016
Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) underside showing internal organs, native to South America
00556015
Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) underside showing internal organs, native to South America
00556014
Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) underside showing internal organs, native to South America
01332323
Juergen Freund / Green urn sea squirt / tunicate (Didemnum molle) internal detail. Misool, Raja Ampat, West Papua, Indonesia.
01333039
Stephen Dalton / Two Water Fleas (Daphnia sp.), showing transparency of bodies and internal organs. UK, September.
Graham Eaton / An underwater view of a mountain stream showing internal reflections on the water surface, Snowdonia NP, Gwynedd, Wales, UK, December 2009.
01187741
Juergen Freund / X-ray of the shell of the Pearly / Chambered nautilus {Nautilus pompilius} showing the internal chambers of the shell.
01635433
Nigel Cattlin / Doyenne du Comice pear (Pyrus communis) fruit with deformity and internal hard growth caused by Pear stony pit virus, cross section. Berkshire, England, UK. October.
01635432
Nigel Cattlin / Doyenne du Comice pear (Pyrus communis) fruit with deformity and internal hard growth caused by Pear stony pit virus, cross section. Berkshire, England, UK. October.
01631499
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered. (non-ex)
01631497
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered. (non-ex)
01631496
Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 10 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered. (non-ex)
01620047
Tony Wu / Sperm whale (Physeter macrocephalus) nostril. This species have a single blowhole on the left side of their heads. The other nostril has been modified into an internal organ called the phonic lip that...
01618858
Matthew Maran / Meat offal, including sheep hearts, for sale at butchers counter. North London, England
01582745
David Fleetham / Sea cucumber (Bohadschia argus) which has ejected a part of its internal organs called Cuvierian tubules. These significantly sticky strings are a defense mechanism designed to deter predators. Yap,...
01592314
Tony Wu / Ram's horn squid / Little post horn squid (Spirula spirula) internal shell with Pelagic goose barnacles (Lepas sp.). South Africa, Atlantic Ocean.
01592505
Lucas Bustamante / Reticulated glass frog (Hyalinobatrachium valerioi) viewed through hole in leaf seeing internal organs through its transparent skin, Canande, Esmeraldas, Ecuador.
01592504
Lucas Bustamante / Female Reticulated glass frog (Hyalinobatrachium valerioi) viewed from below seeing internal organs through transparent skin, Canande, Esmeraldas, Ecuador.
01590154
Emanuele Biggi / Cockroach (Ectobidae sp.) with transparent body so internal organs can be seen. Los Amigos Biological Station, Peru
01590153
Emanuele Biggi / Cockroach (Ectobidae sp.) with transparent body so internal organs can be seen. Los Amigos Biological Station, Peru
01519480
Steve Downer / Close-up larva of Fruit fly (Drosophila melanogaster) showing internal structure, UK
01479023
Ingo Arndt / Scientists implanting wires in the brain of a Desert locust (Schistocerca gregaria) to measure brain activity. University of Marburg, Germany. November 2013.
01479022
Ingo Arndt / Scientists implanting wires in the brain of a Desert locust (Schistocerca gregaria) to measure brain activity. University of Marburg, Germany. November 2013.
01546341
Paul D Stewart / Skeleton of a seahorse (Hippocampus sp.) showing the remarkable structure of bones that form a virtual exoskeleton, with few deep internal bones, in this unusual vertebrate group.
01546334
Paul D Stewart / Calcite belemnite fossils, the calcite internal structures of prehistoric squid like species. These have been shattered by a meteorite impact, 14.5 million years ago, they were already over 100 millio...
01546333
Paul D Stewart / Calcite belemnite fossils, the calcite internal structures of prehistoric squid like species. These have been shattered by a meteorite impact, 14.5 million years ago, they were already over 100 millio...
01546332
Paul D Stewart / Calcite belemnite fossils, the calcite internal structures of prehistoric squid like species. These have been shattered by a meteorite impact, 14.5 million years ago, they were already over 100 millio...
00556013
Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) underside showing internal organs, native to South America
00556011
Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) underside showing internal organs, native to South America
01468155
Mark MacEwen / Bornean orangutan (Pongo pygmaeus) female portrait, Tanjung Puting reserve, Camp Leakey, Central Kalimantan, Borneo.
01417322
Juan Manuel Borrero / Illustration of internal Nautilus anatomy. Pencil and watercolor painting.
01359984
Jan Hamrsky / Narrow-winged Damselfly (Coenagrion) nymph, translucent with some internal organs visible. Europe, August.
01357621
Klaus Echle / Developing and mature Douglas Fir (Pseudotsuga menziesii) cones, a young one split in two to show internal structure. Black Forest, Germany, August.
01343041
Pete Oxford / Opened Polybia Paper Wasp Nest showing internal structure. Cocaya River, Eastern Amazon Rain Forest, the border of Peru and Ecuador.
01332273
Juergen Freund / Green urn sea squirt / tunicate (Didemnum molle) internal detail. Misool, Raja Ampat, West Papua, Indonesia.
01346343
Juergen Freund / Circle or C-hooks vs. traditional J-hooks of longline tuna fishing boat of Nutrindo Freshfood International, Sulawesi, Indonesia, October 2009. Changing from the classic J hook to C hooks can dramatic...
01337944
Florian Möllers / Deutsche Bahn Tower lit up by internal lights in the evening, Potsdamer Platz, Berlin, Germany. January 2009
01333040
Stephen Dalton / Water Flea (Daphnia sp.), showing transparency of body and internal organs. UK, September.
Graham Eaton / An underwater view of a mountain stream showing internal reflections on the water surface, Snowdonia NP, Gwynedd, Wales, UK, December 2009.
01224732
Philippe Clement / Cuttlebone, the internal shell of the Common cuttlefish (Sepia officinalis), France
01224733
Philippe Clement / Cuttlebone, the internal shell of the Common cuttlefish (Sepia officinalis), France
Mark Moffett / Army Ant (Eciton burchellii) carrying leaf, about to be landed on by tiny parasitic fly which will attempt to lay an egg on the submajor, the egg will then hatch into a larva which will consume the an...
01014420
Keith Scholey / Looking up inside mature Strangler fig at internal structure when host dead (Ficus destruens) Daintree NP, Queensland, Australia
01138630
Jane Burton / Common Frog (Rana temporaria) golden-yellow morph tadpoles with their internal organs visible through their unpigmented skin
01138629
Jane Burton / Common Frog (Rana temporaria) golden-yellow morph tadpoles with their internal organs visible through their unpigmented skin
01134606
Kim Taylor / Freshwater worm {Dero} amongst pond debris
01134589
Kim Taylor / Leech {Helobdella stagnalis} showing internal structures
01134590
Kim Taylor / Leech {Herpobdella sp} showing internal structures
01128958
Pete Oxford / Underside of Glass frog {Hyalinobatrachium sp} internal organs visible. Ecuador
00578120
Heidi & Hans-Juergen Koch / Glass Frog (Cochranella antisthenesi) underside showing internal organs, native to South America
Solvin Zankl / Ram's horn squid (Spirula spirula) portrait. This species has an internal, chambered, endogastrically coiled shell in the shape of an open planispiral. The shell functions to control buoyancy. O...
01741910
Solvin Zankl / Ram's horn squid (Spirula spirula) portrait. This species has an internal, chambered, endogastrically coiled shell in the shape of an open planispiral. The shell functions to control buoyancy. O...
01741909
Solvin Zankl / Ram's horn squid (Spirula spirula) portrait. This species has an internal, chambered, endogastrically coiled shell in the shape of an open planispiral. The shell functions to control buoyancy. O...
01741886
Solvin Zankl / Pelagic polychaete (Alciopa reynaudii) portrait. These pelagic worms are known for their fragile, thin, transparent bodies and large, complex spherical eyes with an internal lens. Observed during RV S...
01734399
Will Watson / Park pale made up from an internal ditch and a wooden fence, beside house, Moccas Park National Nature Reserve, Herefordshire, England, UK, December 2023. Fence made from cleft Oak wood.
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Will Watson / Park pale made up of internal ditch and a wooden fence, Moccas Park National Nature Reserve, Herefordshire, England, UK, December 2023. Fence made from cleft Oak wood.
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Will Watson / Park pale made up of internal ditch and a wooden fence, Moccas Park National Nature Reserve, Herefordshire, England, UK, December 2023. Fence made from cleft Oak wood.
01734395
Will Watson / Sign beside gated entrance to Moccas Park National Nature Reserve, with park pale made up of internal ditch and a wooden fence, Herefordshire, England, UK, December 2023. Wooden fence made from cleft...
01724372
Tom Vierus / Surgical implant of an internal tag into a juvenile Bull shark (Carcharhinus leucas), Rewa River, Viti Levu, Fiji. December, 2018.
01728811
Emanuele Biggi / Green bright-eyed frog (Boophis viridis) adult resting on glass showing transparent underbelly. Andasibe-Mantadia National Park, Madagascar. Controlled conditions.
01713040
Lucas Bustamante / Mashpi glassfrog (Hyalinobatrachium mashpi) underside, internal organs visible. Captive, occurs in Ecuador.
01702279
Joel Sartore / Photo Ark / Yuruani glass frog (Hyalinobatrachium iaspidiense) view of underside and jumping out of frame. Captive.
01693113
Jen Guyton / Nurse Berta Barros examining baby Rosalina's heart with her mother behind. Rosalina was born during Cyclone Idai. Outskirts of Gorongosa National Park, Mozambique. April 2019.
01686442
Doug Wechsler / Green frog (Lithobates clamitans) with throat skin going up and down pumping air in and out of lungs, Philadelphia, Pennsylvania, USA. July.
01663475
Emanuele Biggi / Hydnophytum formicarum, a myrmecophile plant that live in a mutualistic association with a colony of ants. Detail of internal structures. Bako National Park, Borneo.
01668607
David Fleetham / Sea cucumber (Bohadschia argus) which has ejected a part of its internal organs called Cuvierian tubules. These significantly sticky strings are a defense mechanism designed to deter predators. Yap, M...
01670686
NaturePL Showreels / Our 2021 nature showreel showcasing a selection of our wildlife, timelapse, slow-motion and drone footage.
01649227
Philippe Clement / Cuttlebone washed ashore on sandy beach, buoyancy organ and internal shell of the European common cuttlefish (Sepia officinalis), Hauts-de-France, France, July