I am happy with the quality of the products provided by Darwin! Will purchase from them again!
A good sized bunch of Elodea that grew nicely and worked well for our photosynthesis experiments.
This was my first purchase from Darwin Biological and my first time purchasing 'fresh'/unpreserved rats.
Dealing with Darwin was easy - my emails were replied to quickly and I was able to call and ask for advice about delivery times. Rats were held after my order was placed, and they were posted out, at the time of my request, on 24 hour delivery, in an insulated bag.
The rats were of very good quality but as it was my first time using unpreserved rats for dissection I was slightly unprepared for the subtle differences in appearance from the preserved specimens I would normally use. My students found this dissection a challenging one but they all thoroughly enjoyed the hours they spent completing it.