Brain size area in women, corresponding to spatial versus language specializations. Small studies have attempted to link brain volume with functional measures such as P300 auditory evoked potentials but finding no association. Studies attempting to related sibling differences in IQ to differences in brain volume are hampered by relatively small sample sizes and the noisy nature of such difference scores, yielding weak evidence for cross-trait cross-sib correlations. The largest brain is that of the sperm whale, weighing about , and killer whales, weighing about . An elephant's brain weighs just over and a bottlenose dolphin's . Brain size tends to vary according
James Whale (radio) 2018, Whale announced that Maxted had been diagnosed with stage four lung cancer. She died on 12 May 2018. In February 2000, Whale was diagnosed with kidney cancer. He had not experienced any symptoms until he noticed blood in his urine, caused by a large tumour on his left kidney. He underwent an operation from which he had a 50% chance of survival, and chose not to have chemotherapy afterward. In 2006, he launched the James Whale Fund for Kidney Cancer to fund research and raise awareness of the disease. The fund became Kidney Cancer UK in 2016. Whale has