Welcome to Stripcreator, your humour's solid and you're off to a great start :)
A couple of tips as requested:
- Try to avoid using so much text that it extends the panel upwards, as the background starts to loop.
- Leave the bubble blank for a pregnant pause, the "..." looks silly as it makes the bubble skinnier than the pointer bit underneath
- Tidy up the grammar and punctuation a bit, eg; missing full stops, caps at the start of a sentence, "b/c". Just makes it easier to read.
Those are just housekeeping points though, you've got the main thing down: the funny :)
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Dinosaurs had eggs bro, the chicken came way later.