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Biology
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Berlin, Germany, 30 October - 1 November 2026
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Paris, France, 13 - 15 November 2026
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Environmental systems and societies: A focus on internal assessment
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Keys to Success: The new Extended Essay in DP Biology (first exams M27)
15 October 2026
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Biology is now bigger than physics, as measured by the size of budgets, by the size of the workforce, or by the output of major discoveries; and biology is likely to remain the biggest part of science through the twenty-first century.
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5 Oct 2026
Richard Scarr
It is with great sadness that we have to announce the passing of Richard Scarr. He was always an enthusiastic biologist and a dedicated educator. After reading Biology at Kings College in London he taught...
12 Aug 2026
Exam practice questions
Over the summer we have completed a full set of exam practice question pages, one for each topic. These pages are great for homework or revision. The Exam practice concept; The pages all have “exam practice”...
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See all"These Inthinking Biology activities are excellent! I was looking for something to break the monotony of a cells lesson so I tried the Cell types detective activity. Students loved it. Both the situation and the examples were brilliant"
Amit Khanna
Jakarta Intercultural School
"This is an excellent resource for any IB Biology teacher. David Faure has many years of IB teaching experience and some great ideas and suggestions particularly on the integration of technology in the classroom. We use this as an additional source of..."
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British School of Brussels
Subscriber comments
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I am so heartbroken to hear this news. May he rest in peace, and please accept my sincere condolences.
Richard Scarr -
Dear Lauren, I've just posted model answers as you requested for this dichotomous key activity. Of course this is just one possible answer, but it will illustrate the method. I realise the bee shapes and colours are quite tricky.Best...
Biodiversity of species & DNA -
A student wishes to use AI to create a simulation that would generate the data for her Biology IA, rather than collecting data experimentally. Provided that she designs the simulation herself and analyzes the resulting data, would this be an acceptable...
IA official assessment criteria
Elizabeth
The updated Ensembl website no longer lists the length of the genome on the organism's homepage (3099Mbp for humans). If you click on the down arrow to expand the Assembly section, you will see genome length in bp. This feature is not available for...
Genome Projects (2025)