Book Preview: Is There Purpose in Biology? The cost of existence and the God of love

t-lymphocyte-killing-cancer-cell-wellcome-images-odra-noel.jpg
‘St George and the dragon’, an artistic interpretation of a T lymphocyte killing a cancer cell, Wellcome images, © Odra Noel

Reactions to the question “Is There Purpose in Biology?” are likely to vary greatly. One reaction will be “of course not”: watch your favourite natural history programme and it’s obvious that chance rules. Some animals get lucky and do well, others get eaten young, and there’s no overall rhyme nor reason to it. Others responding to the same question, most likely coming from a religious worldview, will respond “of course”: God has an overall purpose for everything, including biology. Others, perhaps the majority, are more likely to say: “Well it all depends on what you mean by purpose…” Continue reading

Guest Post: T Cells – a wonder and a signpost

Human neutrophil ingesting MRSA - By National Institutes of Health (NIH) [Public domain], via Wikimedia Commons
Human neutrophil ingesting MRSA – By National Institutes of Health (NIH) [Public domain], via Wikimedia Commons
There are many amazing complex systems in our bodies, but the immune system beats them all, recognising foreign invaders like bacteria, viruses and parasites and fighting them off.

How do our bodies manage to recognise virtually any kind of foreign invader that we might meet anywhere in the world? Continue reading