Why does a skull emoji pop up in the auto-correct bar when I type in 'TOD' with the new Apple update to iOS 10.0.2 installed?

The skull emoji may pop up in the auto-correct bar when you type 'TOD' with the new Apple update to iOS 10.0.2 installed because 'TOD' is a common abbreviation for 'time of death' in medical or forensic contexts, where a skull emoji could be relevant. The auto-correct feature may suggest this emoji based on the frequency of its use in similar contexts, as well as the algorithm's attempt to predict and offer relevant emojis based on the input text. This feature aims to enhance user experience by providing quick access to commonly used emojis in relevant situations.