A tiny, eyeless ‘microscorpion’ has been found in an ancient forest in Australia
In one of Australia’s most famous rainforests, a creature has been discovered that even an experienced biologist could easily overlook. It is almost transparent, eyeless, soft and tiny — and looks more like a strange micro-monster from under a rock than a familiar forest dweller.
The discovery was made by Matthew Connors, a PhD student at James Cook University, during a night-time survey at the Daintree Rainforest Observatory. After the tour, he returned to the forest alone, spent about an hour carefully examining small creatures, and spotted a palpigrade – a so-called micro-knotted scorpion – under a small stone. This is the first recorded sighting of such an animal in the Daintree Forest.
Details
Connors works at the Daintree Rainforest Observatory as an entomologist, taxonomist, demonstrator and guide for groups visiting to study the rainforest. One of the most popular activities is night-time walks with torches, during which participants search for animals that are active after dark.
In March 2025, after one such excursion, he decided to take another walk through the forest – this time on his own. At around 10.00 pm, he lifted a small stone and saw an animal he had never before encountered in the wild. It later transpired that no such finds had yet been recorded in the Daintree.
Palpigrades, or microwhip scorpions, usually reach a length of just 1–1.5 mm, whilst some members of this group are less than a millimetre long. They have no eyes, no colouration, a soft exoskeleton and a long whip-like appendage at the end of their body. The American Arachnological Society describes them as tiny arachnids no more than 3 mm long.
Following the initial discovery, Connors returned to the site with photographer, science communicator and arachnologist Caitlin Henderson to photograph these tiny creatures.
Why this is interesting
Daintree is one of Australia’s most famous rainforests, but even there, scientists continue to discover almost imperceptible creatures. This is particularly true of invertebrates: insects, arachnids, millipedes and other small creatures that live in leaf litter, soil, under bark and beneath stones.
Palpigrades are precisely such secretive creatures. The British Arachnological Society notes that they inhabit the soil, moss, leaf litter, and under stones and bark, particularly in tropical and subtropical regions. It is therefore difficult to spot them by chance: one must search slowly, at night, very close to the ground.
According to Connors, the animal found may belong to a previously unknown species. But caution is needed here: for science, a species only becomes ‘new’ after formal description, comparison with other species and publication. For now, it is more accurate to say that the discovered palpigrade may turn out to be a previously undescribed species.
Why this is important
Such discoveries highlight just how little we know about the tiny inhabitants of tropical forests. Larger animals are easier to spot and study. But creatures the size of a grain of sand can remain unknown for decades, even in places where scientists are constantly at work.
This is particularly important for Australia. Connors notes that, according to estimates, around two-thirds of Australia’s invertebrates have not yet been formally described by scientists. This means that new species may be hiding literally under our feet — in the soil, under stones and in fallen leaves.
The discovery also highlights the value of field stations such as the Daintree Rainforest Observatory. The observatory gives students and researchers the opportunity to work directly in the rainforest, and such conditions increase the chance of chance yet significant discoveries. JCU itself describes the Daintree Rainforest Observatory as a base for research, study groups and fieldwork in the ancient rainforest.
Background
The Daintree Rainforest Observatory is situated in the Cape Tribulation area of northern Queensland, near the Daintree – part of Australia’s wet tropics. The site is used for research, ecosystem monitoring and student education.
Palpigrades are a very little-known group of arachnids. They are known as micro-scorpions because of their body shape and long, tail-like flagellum, but they are not true scorpions and pose no danger to humans.
This is precisely why the discovery in the Daintree is of interest not because of the animal’s size, but because of the rarity of the record: it is the first recorded sighting of a palpigrade in this forest and one of only a few such finds in the region.
Source
Main source: a discovery report published via Phys.org, citing James Cook University. It describes Matthew Connors’s night-time discovery at the Daintree Rainforest Observatory, the subsequent photography session with Caitlin Henderson, and the preliminary assessment of the animal as a possible previously unknown species of palpitigrid.