The toads have evolved to always lay their eggs in the same location with relatively shallow water that, in the past, apparently provided the optimal combination of warmth for quick hatching and adequate protection from UV-B radiation.
(The toads; have evolved; ) (The toads; to lay; their eggs; in the same location with relatively shallow water; T:always)
The toads The toads
have evolved to lay
their eggs in the same location with relatively shallow water T:always