Fill in the gaps with the connectives from the list
- Unlike
- Even though
- Due to
- because
- But
- In fact
- As a consequence
- However
- Instead
- Regardless of
- since
- Admittedly
- As a result
- As yet
- regarding
[ ] today, back in 1970s, whales used to be aggressive to fishing boats. [ ] the boats did not do any harm, these water mammals would bump and rock the vessels. [ ] whale hunting, they had learned to fear humans [ ] whaling boats had harpoons. [ ] by 1980s, friendly whale encounters had become common. [ ], whales started to show their interest in humans following the boats for miles. [ ], whale-watching tourism has emerged. [ ] fearful whales are, they do not back away from tourists. [ ], they come close and offer themselves for observation. [ ] the boat size, the animals let tourists use their cameras [ ] harpoons are not in sight. [ ], there are cases of animals' abuse and human aggression. [ ], whales may still respond and treat the boat as a predator. [ ] there are no strict guidelines [ ] tourists' code of behaviour towards whales.