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Tractors may have revolutionised farming but to protect biosecurity, farmers could do with some extra help. Ben McLeod/Flickr

Go with the grain: technology to help farmers protect crops

New technology to tackle biosecurity challenges down the track is one of the five megatrends identified in today’s CSIRO report Australia’s Biosecurity Future: preparing for future biological challenges…
Sorry guys, if you are smaller than 1 mm, you can’t be a species. Microbe World

How small is too small to qualify as a species?

Despite their small size, organisms smaller than thousandth of a metre (1 mm) contribute greatly to biodiversity and ecosystem function. Unfortunately, categorising small organisms, even defining those…
The lack of biological information about some species may be keeping them off the IUCN critically endangered list. Mariana Campbell

Protecting endangered species we don’t know much about

The World Conservation Union (IUCN) uses set criteria to define species extinction risk. At the pointy end of the wedge, species are classed as Critically Endangered, Endangered or Vulnerable. Overall…
There are roughly 5 million species on earth. Most are insects. Roger Smith

We can name all of Earth’s species, but we may have to hurry

There has been enormous uncertainty amongst the scientific community on just how many species there are on Earth and how rapidly we are losing them through extinction. Given that taxonomists have described…
Taxonomists are in the business of classifying the life we see around us – plant, animal and otherwise. Gnilenkov Aleksey

Explainer: what is biological classification?

For taxonomists, days often start – and sometimes end – with the question: what’s that? Whether you’re an entomologist, staring at a new species of riffle bug from a rainforest stream, or a paleontologist…
It’s time for a change in the way we categorise life on Earth. ஆ ன ந் த ம் / a n a n d h a m

DNA barcoding: a better way to discover species

It might surprise you to learn that the idea of a “species” is one of the more ambiguous concepts in science. Originally, “species” (meaning “kind” or “sort” in Latin) was used to refer to organisms that…
What’s in a name? A whole lot of booty, and some Latin, as it happens. asterix611

Beyoncé is a fly … but why?

Late last week CSIRO announced that a new species of horse fly had been named after pop diva Beyoncé’s bottom. The story generated a real buzz across traditional and social media both in Australia and…
There are only around 150 Barrunan dolphins known in the world. Monash University

New dolphin species discovered

Australian researchers have discovered that a dolphin found in Victoria is its own separate species, distinct from all other…
Estimates on the possible number of species vary wildly. Holger Hollerman/AFP

8.7 million species now estimated on Earth (and then some)

An estimated 8.7 million species exist on Earth, according to a paper published today in PLoS Biology. The figure is based on a new validated analytical technique that, it’s said, significantly narrows…

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