In the absence of these, we propose that their extinction was possibly the result of long-term demographic and genetic declines associated with an isolated island population.
Estimates on when stegodons arrived on individual islands and the timings of their extinctions are poorly constrained due to few reported direct geochronological analyses of their remains.
• Timing and duration of emotional gestures and emotions are off a normal pace.
Warren is a clinical psychologist and author of eight books on love, marriage and emotional health.
New Rb–Sr and Pb/Pb isotope data for the Mushandike granite indicate a probable emplacement age of ˜2,900 Myr, and new field evidence (J.
Thus the new dates do not support an age of ˜3.5 Gyr for the algal stromatolites at Mushandike.