This took a little longer to come than the other products we purchased ,but it was very healthy and worked well in the bubbling experiment.
Delivered safely and put in one. Won’t know how effective till later but pleased with order
Let customers speak for us
Cow Heart
Delivery was very quick and the heart was a very good specimen, fully intact and ideal for demonstration use on open morning.
Stacey Ellis
Frozen Cow Heart
Worked great.
Really happy, worked great. Fast delivery. Buy this product from here every year because I know it works.
Laura King
E.Coli K12 Strain
Fast and convenient
Easy to order. Delivery very fast and nice sample. Will definitely order again
Richard Reece
Pond Water Species
Fish heads and E.coli
Delay in writing review as I wanted the teachers feed back on the fish heads. From a technician's point of view, so easy to shop here for fish heads. Arrived in an extremely timely manner in great condition and brilliant recycled packaging.
Great dissection material and yes we have stunk out the whole department!.
E. coli growing well. Thank you.
Chris
Frozen Fish Heads (Mackerel)
Save money
They are suitable to store in fridge for longer period. Individually packed and ready to use from your lab all the time.
Sadia Khurshid
Preserved Cow Eyes
Speedy delivery and very high quality. Would highly recommend
Jo Evans
Frozen Sheep Pluck (Heart, Lungs & Liver)
Class Practical
These arrived in perfect condition and were great for our students.
Jo Adams
Preserved Sheep Eyes
Excellent sevice
Excellent service. The pooter is ideal for collecting micro moths. I would recommend Darwin Biological as a company.
Customer Linda Carthy
Pooters
Oh dear!
Hi again,
I happily award five stars, as your level of Customer Care and courteousness during your call, (following my last review), deserves applause. Now though, onto the nitty-gritty …. Would you believe that, your second delivery of pond water was just as devoid of ‘visible life forms’ as the first. I’m truly not laying the blame at your feet, simply that, it must have something to do with oxygen depletion - that’s my guess. Just as a suggestion, I reckon a simple, secure ‘fit for purpose’ polythene bag, (like the ones a goldfish is carried in), and some air pumped would be a good alternative.
I’m NOT requesting a refund, as I spent hardly anything.
All the best
Jeanette
Jeanette Sitton
Pond Water Species
Algae Growth Medium
The growth medium arrived in good quality. It's easy to use following the guide provided. It's worth noting that one tube of solution is colourless, while the other one is slightly pale pink which may not be easily observed on the photos online.
Anonymous
Algae Growth Medium
Scenedesmus quadricauda
The algae arrived were in good quality and in adequate concentration which can be used for experiment right away. It offers flexibility without the need to grow it first before use. Very good.
Anonymous
Scenedesmus quadricauda
Welcome to Darwin Biological
Here at Darwin Biological we supply a wide range of live and preserved specimens and cultures from our base in beautiful Shropshire. We are specialists in drosophila (fruit flies) and bacteria.
For more information about us click here.
"Thank you for sending out our order so promptly and so well packaged (all sustainable, which was very nice to see). We were very pleased with our order and have already dissected our way through a significant proportion, so will be looking to re-order a similar quantity at a similar time next year."– Lucy B
"Efficient delivery and great product. Product was ordered on a Thursday and with me by the following Tuesday morning. Worked well for the A-Level antimicrobial resistance practical. Would definitely recommend to others for this practical."– Oliver
"Great Quality. Arrived as described. Intact brain with all the important bits attached. Pupils really enjoyed the dissection."– A Mckinlay
Our Partnerships
Here at Darwin we believe in working with world renowned institutions to bring UK schools the best possible products at affordable prices.
Our Values
Sustainability is at the heart of everything we do here at Darwin; from sourcing our specimens locally to using environmentally friendly packaging.
Our Team
We are a female founded business with a real passion for providing products that inspire the next generation of biologists
Product Information
Click the link below to find lots of product information, from caring for pond weed to feeding drosophila. And if there are any questions our team haven't covered, get in touch! We're always looking for new article ideas to help support our customers.
Woodlouse Care
Woodlice are fascinating creatures that are great for school biology practicals. Learn how to keep them and all you need to know about using woodlice.
Drosophila Care
Why you should keep Drosophila and what to do with them once you've got them! These fascinating flies should be a staple in every biology lab. From breeding to media...