Summarize the point made in the lecture and explain how the speaker cast doubt on specific points made in the reading passage.

Based on a number of practical investigations, the lecturer carried out several reasons that oppose the mentions in the reading passage. First, according to the reading section, the decline in the otter’s population is caused by predation. However, the teacher stated that they had discovered numerous otter bodies washed up onshore. He added that if the otter were hunted by predators, then it would be eaten right away. This clue shows transparently that predators are one of the most culprits of the decrease in the number of otters. Second, the reading paragraph pointed out that pollution impacted the decline in mammals in the sea because not only otters but also seals were affected. It is said that a predator like a whale only hunts for larger prey. The lecturer indicated that if the other sea mammals decreased, whales would have nothing to eat, then they would find alternative prey, which could impact the decline overall. Finally, the lecturer again brought out an argument that contradicted the paragraph. He continued with predation having a solid impact on the going down of uneven patterns of otter’s body numbers. Predators could hunt at accessible locations, therefore, affecting the decline of otter individuals in uneven areas.