Ever wondered what biological witchcraft is going on inside the chrysalis (‘cocoon’) of a developing butterfly? One team from Manchester University and the Natural History Museum has a better idea than most – Tristan Lowe and colleagues used CT scanning technology to trace the development of living animals undergoing metamorphosis. Their use of CT ingeniously…
Tag: microscopy
Incredible electron microscope GIF gives an amazing sense of scale!
//giphy.com/embed/26BRQY7cHMMVzU6n6 This series of SEM (scanning electron microscope) images shows a tiny crustacean called an amphipod before zooming in on a miniscule diatom resting on its head, and finally picking out the shape of a single bacterium on the surface of the diatom. A truly awesome science GIF! Via Smithsonian mag, GIPHY.
New photographic project captures intricate beauty of insects
A new collection of images launched this week by the Oxford University Museum of Natural History reveal in stunning detail the intricacies of insect anatomy. Each image is a composite of around 8,000 individual photos, with the artist Levon Biss painstakingly adjusting the lighting and settings for each one to best highlight the microscopic details…
#ThrowbackThursday individual bone cells from ‘Lucy’ tell the story of her growth
This rather abstract-looking image shows a tiny patch (around 110 micrometres across) of an ancient hominid femur. ‘Lucy’ is one of the the oldest and probably the most famous early human-like primate, belonging to the species Australopithecus afarensis. She lived around 3.2 million years ago in sub-Saharan Africa, and her remains were discovered in 1974 in Ethiopia….
#TomographyTuesday: Watch incredible CT scan reveal young brittle stars developing inside their parent!
Most marine invertebrates, and certainly most brittle stars, spawning gametes (eggs and sperm cells) into the oceans and the embryos are formed and grow externally. But a few species carry live young, with their offspring developing within the parent’s body. How exactly these creatures – which have pretty small central bodies to begin with – accommodate…
A fluffy mammal? A furry tail? Believe it or not, this is a mollusc!
Well, this certainly isn’t the image that springs to mind when you think of molluscs – but the more recognisable snails, oysters and octopus only represent three out of the eight living groups. This beautiful creature is a solenogastre, one of the two vermiform (worm-like) molluscan groups. Solenogastres are found in oceans across the world, from…
Sections through tough wombat femur show possible adaptation to digging.
Wombats are marsupial mammals that are only found in Australia. They are fossorial and dig out extensive networks of burrows. Wombats have a variety of adaptations to this lifestyle, which is energetically demanding and unusual in marsupials, including a unique backwards-facing pouch to prevent young being smothered with dirt while digging. This lovely section, which represents a…
Section through a mouse vertebra
Section through the centre of a mouse vertebra, image courtesy of Michael Paul Nelson and Samantha Smith from the Nikon Small World competition.
#wormwednesday: Scale worm jaws reveal cannibalistic habits
Most worms seem pretty harmless – no one ever worries about a nasty bite from an earthworm. But they’re not all so benign. Many species of polychaetes have fearsome jaws that they use to feed on unsuspecting prey – including other worms. These alien-looking gnashers are formed from strengthened collagen and can extend all…
Young sea star
Close-up view of a young sea star or starfish, demonstrating two of the key anatomical features of echinoderms, the phylum to which they belong. The first is the pentaradial (five-way radial) symmetry that gives it its characteristic star shape, which is highly unusual. This symmetry means that, unlike most ‘higher’ animals, the sea star has no head or…
In Focus: ‘Skin teeth’ stories: using shark denticles to look to their past
Our guest post this week comes from Erin Dillon, a short-term fellow at the Smithsonian Tropical Research Institute. If you would like to contribute a guest post, please get in touch on Twitter or Facebook. What were shark communities like before humans? We know that shark populations have waned significantly over the past several centuries, but we don’t yet…
Feeding an ocean: diatoms
Diatoms are tiny microalgae which make up a large proportion of phytoplankton (plankton which is more closely related to plants than to animals) living in the world’s waters. More than 100,000 living species of diatoms form the basis of countless food chains, and are eaten by everything from tiny zooplankton (which includes small animals such…
Anatomy To You 