Tuesday, 19 April 2016
Not So Much a Catastophe, Then?
A new study, based on three dinosaur groups, has concluded that the Mexico asteroid strike should be viewed as the last nail in the coffin of these reptiles rather than the direct cause of their mass extinction (https://www.theguardian.com/science/2016/apr/18/dinosaurs-in-decline-long-before-asteroid-catastrophe-study-reveals). The authors conclude that the 'vigour' of these animals had already declined, as there appeared to be a marked decline in the creation of new species, in the period well before the strike. This is an interesting observation but it could be the case that the groups were well adapted to their available environments (no change over millennia doesn't always mean 'about to become extinct'). One could even argue that dinosaurs were diversifying, giving rise to the birds and the mammals, which were capable of exploiting new environments as well as surviving the aftermath of the asteroid hit.
Hurricane Ophelia also blew a Green lacewing ( Chrysopa 7-punctata ) into my house.
A combination of night rain and day-time sun has resulted in more Bynea blooms. The Southern marsh orchid ( Dactylorhiza praetermissa...
A study ( https://www.theguardian.com/science/2017/feb/01/special-spit-is-the-secret-of-uniquely-sticky-frog-tongues-study-reveals ) has...
It is always sad to hear of problems occurring at places you have used for teaching and the outbreak of h5n8 avian influenza at Abbot...