Biology

Unrelated plants and animals challenge evolution because of symbiotic relationships.

Why did God allow thorns and thistles? Why is it that the plants that offer the clearest proof of design are also ones that are either weeds or their designs almost seem pernicious? The answer is surprising. God built these designs as part of the overall coding, knowing that there would be a fall.

Ostriches are among a number of flightless birds that are classifed together for that reason, but there is so many differences between them that it is a stretch of the imagination to construct an evolutionary ancestry.