The theory begins with the continents beginning as one united land mass called Pangea. When the tectonic plates began to move these land masses apart the plants and animals that were on them were separated around the world, but they all began on the same land mass so that is why they are so similar.
Mangrove forests were traditionally viewed as A. unproductive wastelands. People therefore reasoned that their removal would improve the health of their ecosystems, leading to their degradation.
